So, I'm nervous about the fact that I can't replace the battery on my ONE. So far every night I've been staying up late until the phone dies, then plugging it in, waiting til the light stops flashing, then powering it up to charge while on overnight.
Problem is, this phone has awesome battery life. Right now at 10.30pm, I'm sitting at 41%, and debating just leaving it unplugged all night.
So what's the deal with memory on these batteries? How much, say over a 2 yr span, will charging a non-drained battery shorten its lifespan or lessen its capacity?
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MadDogMaddux said:
So what's the deal with memory on these batteries? How much, say over a 2 yr span, will charging a non-drained battery shorten its lifespan or lessen its capacity?
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
Lithium ion batteries are awesome. They are lighter, smaller and do not suffer from "memory effect."
Do not drain then fully recharge this phone on a regular basis. That will accelerate capacitance loss. Keep it charged as much as possible, avoid fast charging, try to use your PC to charge it overnight. Do not leave it charging for too long (i.e. days on end). Though on board computers can refuse charging, it is best to stay on the safe side.
2 years, you will definitely notice a decrease in battery life, but by the time it becomes intolerable, you will have upgraded. I can almost guarantee that.
EDIT: Please add to/refute any statements I made if you have greater knowledge on this subject, people.
Thanks! Can you explain why using mr PC to charge is better?
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MadDogMaddux said:
Thanks! Can you explain why using mr PC to charge is better?
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Click to collapse
Because it's a slower charge at a lower amp rating prolongs battery life by not boiling the cells
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customhdrider said:
Because it's a slower charge at a lower amp rating prolongs battery life by not boiling the cells
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Click to collapse
Gottit. Thanks!
No problem,glad I could shed some light on the subject
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MadDogMaddux said:
So, I'm nervous about the fact that I can't replace the battery on my ONE. So far every night I've been staying up late until the phone dies, then plugging it in, waiting til the light stops flashing, then powering it up to charge while on overnight.
Problem is, this phone has awesome battery life. Right now at 10.30pm, I'm sitting at 41%, and debating just leaving it unplugged all night.
So what's the deal with memory on these batteries? How much, say over a 2 yr span, will charging a non-drained battery shorten its lifespan or lessen its capacity?
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
As was previously noted, what you're doing is actually the worst possible thing you can do to a lithium ion battery. In general, best practice is to keep your battery somewhere between 10%-95% charge whenever possible. Once a month, you should "cycle" your battery under 10% (but not fully drained) to keep everything in peak condition. If you're ever not going to use the phone for any length of time, best practice is to drain to 40% and store in a cool, dark area.
When you first get a new device, you do want to condition it by doing three to five (varies on the device) full charge/discharge cycles, but after that, once a month with a conditioning cycle will take care of things for you. And again, as was previously noted, it's not a great idea to leave your phone charging overnight because you can't always depend on the battery controller chip.
These newer cells are all rated to relatively high cycle lifetimes, so I wouldn't worry overmuch. At that point, capacity is supposed to start degrading, although naturally it's going to happen a bit earlier for any number of reasons. I'd be much more worried about avoiding heat though than overcharge.
I'm assuming charging it slowly would keep it slightly cooler than a wall socket and closer to room temp, the better.
There is probably some other reason, but I'm not the person to ask. you can do some independent research. :good:
Just charge your phone when it needs it and don't when it doesn't. Do that and you'll be good until you upgrade no problem.
EDIT: Oh, beat me to it... haha
EDIT: Also, does the 40% apply to phones? Mobile devices never really turn off, they just go into deep sleep, I'm told. I was going to say that too, but then I remembered this. Does the 40% rule apply to non-removable batteries?
sauprankul said:
I'm assuming charging it slowly would keep it slightly cooler than a wall socket and closer to room temp, the better.
There is probably some other reason, but I'm not the person to ask. you can do some independent research. :good:
Just charge your phone when it needs it and don't when it doesn't. Do that and you'll be good until you upgrade no problem.
EDIT: Oh, beat me to it... haha
EDIT: Also, does the 40% apply to phones? Mobile devices never really turn off, they just go into deep sleep, I'm told. I was going to say that too, but then I remembered this. Does the 40% rule apply to non-removable batteries?
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It's a question of how much voltage you're chucking into the battery. If you use a low-voltage wall adapter it'll be the same as if you were charging from your PC.
The 40% rule applies to any battery, and they'll all discharge over time anyway (connected or no). If you shut your phone off, everything powers down except (if memory serves) what's necessary to run the internal clock. The impact that has should be pretty minimal (unless you're trying to bury your One for a thousand years, in which case...can't help you there).
Rirere said:
It's a question of how much voltage you're chucking into the battery. If you use a low-voltage wall adapter it'll be the same as if you were charging from your PC.
(unless you're trying to bury your One for a thousand years, in which case...can't help you there).
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Who would buy a low voltage wall adapter?
And yes, I would like to bury my One safely for a thousand years, so when it is found by the generation of humadroids, they will see it and be amazed that a civilization so primitive could achieve such technological mastery.
sauprankul said:
Who would buy a low voltage wall adapter?
And yes, I would like to bury my One safely for a thousand years, so when it is found by the generation of humadroids, they will see it and be amazed that a civilization so primitive could achieve such technological mastery.
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I don't know that I bought any, but I have a few lying around from yesteryear's gadgetry.
And at that point, why not launch it into space instead, a la HTC Nexus One?
So I use my phone as my alarm clock and also run the Relax and Sleep app all night. Otherwise I'd just plug it into my lappy throughout the day and not worry about it.
But that raises another question: running the phone overnight while charging it at the same time. Bad juju?
I plugged into my lappy last night around midnight, woke up this morning and had about 95% charge, rather than the usual 100%. I'm assuming this is the result of power output for Relax and Sleep cutting int power input from charging.
I've also been in the habit of leaving my EVO 4G plugged in while tethering. I assume this is also a bad plan?
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sauprankul said:
Lithium ion batteries are awesome. They are lighter, smaller and do not suffer from "memory effect."
Do not drain then fully recharge this phone on a regular basis. That will accelerate capacitance loss. Keep it charged as much as possible, avoid fast charging, try to use your PC to charge it overnight. Do not leave it charging for too long (i.e. days on end). Though on board computers can refuse charging, it is best to stay on the safe side.
2 years, you will definitely notice a decrease in battery life, but by the time it becomes intolerable, you will have upgraded. I can almost guarantee that.
EDIT: Please add to/refute any statements I made if you have greater knowledge on this subject, people.
Click to expand...
Click to collapse
MOST of this advice is 100% true.
The only part that is not correct information is the advice to not let it die. It is perfectly OK to do this as long as you don't deep discharge the battery... Example like let it die then not charge it for like a week or something.
The science behind this is the fact that lithium ion batteries actually have a nominal voltage operating range which is like 3.2 - 4.3 volts or something like that. Your device is designed to shut itself down when it gets to about 3.5... This is done to protect the battery from deep discharge cycles.
Letting it die is perfectly alright. Just make sure you charge it soon after.
Also, you don't need to use your PC to charge it. That is in no way necessary. Your device came with a wall charger for a reason...
There are safety features built into the kernel and cable to keep you from damaging the device during charge. Use the wall.. It is perfectly safe and faster / more practical.
MadDogMaddux said:
So I use my phone as my alarm clock and also run the Relax and Sleep app all night. Otherwise I'd just plug it into my lappy throughout the day and not worry about it.
But that raises another question: running the phone overnight while charging it at the same time. Bad juju?
I plugged into my lappy last night around midnight, woke up this morning and had about 95% charge, rather than the usual 100%. I'm assuming this is the result of power output for Relax and Sleep cutting int power input from charging.
I've also been in the habit of leaving my EVO 4G plugged in while tethering. I assume this is also a bad plan?
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Click to collapse
Your battery will automatically cycle between 95%-99.9999% to prevent overcharge, so you're fine on this front. You probably just caught it on the low end of the cycle.
The issue with charging + tethering is that a phone draws more power when plugged in (ramping up processor, etc.), and tethering eats a lot of power. More importantly, both charging the battery and running the antennas for tethering generate a lot of heat. So long as you watch your battery temp (most good tethering apps will toss in a temperature gauge, although if you're using stock you'll need another solution), you should be fine, but heat is one of the fastest ways to kill a Li-ion battery.
Admiral Sir Manley Power said:
MOST of this advice is 100% true.
The only part that is not correct information is the advice to not let it die. It is perfectly OK to do this as long as you don't deep discharge the battery... Example like let it die then not charge it for like a week or something.
The science behind this is the fact that lithium ion batteries actually have a nominal voltage operating range which is like 3.2 - 4.3 volts or something like that. Your device is designed to shut itself down when it gets to about 3.5... This is done to protect the battery from deep discharge cycles.
Letting it die is perfectly alright. Just make sure you charge it soon after.
Also, you don't need to use your PC to charge it. That is in no way necessary. Your device came with a wall charger for a reason...
There are safety features built into the kernel and cable to keep you from damaging the device during charge. Use the wall.. It is perfectly safe and faster / more practical.
Click to expand...
Click to collapse
Although a full normal discharge (phone powering off) won't kill your battery in one go, it's a deeper discharge than I would recommend on a regular basis. Things are built with margins of safety, but I don't like playing on the edge when I can avoid it. The difference between 10%-15% isn't too much either when it comes to my use-case either, so I'm content to bounce between 20/30-95 most of the time.
Rirere said:
Your battery will automatically cycle between 95%-99.9999% to prevent overcharge, so you're fine on this front. You probably just caught it on the low end of the cycle.
The issue with charging + tethering is that a phone draws more power when plugged in (ramping up processor, etc.), and tethering eats a lot of power. More importantly, both charging the battery and running the antennas for tethering generate a lot of heat. So long as you watch your battery temp (most good tethering apps will toss in a temperature gauge, although if you're using stock you'll need another solution), you should be fine, but heat is one of the fastest ways to kill a Li-ion battery.
Although a full normal discharge (phone powering off) won't kill your battery in one go, it's a deeper discharge than I would recommend on a regular basis. Things are built with margins of safety, but I don't like playing on the edge when I can avoid it. The difference between 10%-15% isn't too much either when it comes to my use-case either, so I'm content to bounce between 20/30-95 most of the time.
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Click to collapse
That is certainly a good point as well. No need to play on the edge of the cliffs. lol
You see my point tho
About safety margins
Related
I turn my phone on Airplane mode and unplug at night while I'm sleeping.
BUT! When at work and at home at other times, is it bad to leave it plugged in 100% of the time? (I.E. does it decrease total battery life over a few years to be constantly charging.)
Or is it better to unplug ASAP when it hits 100% and let it drop to 20-30% and recharge-unplug-recharge-unplug etc? (If so, how much of a difference would this make?)
And does it matter USB vs AC source? I know USB is half the amps, so this could have an effect too?
Honestly, the battery is going to deteriorate a bit either way over a year time span. It is probably best if you just replace the battery every year.
Paul22000 said:
I turn my phone on Airplane mode and unplug at night while I'm sleeping.
BUT! When at work and at home at other times, is it bad to leave it plugged in 100% of the time? (I.E. does it decrease total battery life over a few years to be constantly charging.)
Or is it better to unplug ASAP when it hits 100% and let it drop to 20-30% and recharge-unplug-recharge-unplug etc? (If so, how much of a difference would this make?)
And does it matter USB vs AC source? I know USB is half the amps, so this could have an effect too?
Click to expand...
Click to collapse
Doesn't matter. All you need to really be worried about is that you leave it on the charger long enough to get a true 100% charge, and you don't always put it on when at 80%, try and run it down from time to time to 10% type thing.
If you leave it on the charger 24/7 for a year, it will have no real effect on the battery that a year of use wouldn't do, and you might actually come out ahead since battery life times are based on charge cycles... when on charger, as you are asking about, there would be virtually no charge cycles.
pjcforpres said:
If you leave it on the charger 24/7 for a year, it will have no real effect on the battery that a year of use wouldn't do, and you might actually come out ahead since battery life times are based on charge cycles... when on charger, as you are asking about, there would be virtually no charge cycles.
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Click to collapse
Ooooh, interesting... Did not know that. I thought that leaving it charging was the worst case possible.
But let's be honest.
How long do you think you'll keep the phone?
I've never had one more than a year...
Amdathlonuk said:
But let's be honest.
How long do you think you'll keep the phone?
I've never had one more than a year...
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Click to collapse
Til the Nexus Two comes out bro
[Edit]: Well, my thinking is how BAD could this affect it. Like leaving it plugged in all the time = 50% battery capacity in 4 months type of thing. I guess that is not the case though eh?
Paul22000 said:
I turn my phone on Airplane mode and unplug at night while I'm sleeping.
BUT! When at work and at home at other times, is it bad to leave it plugged in 100% of the time? (I.E. does it decrease total battery life over a few years to be constantly charging.)
Or is it better to unplug ASAP when it hits 100% and let it drop to 20-30% and recharge-unplug-recharge-unplug etc? (If so, how much of a difference would this make?)
And does it matter USB vs AC source? I know USB is half the amps, so this could have an effect too?
Click to expand...
Click to collapse
To add to what pjcforpres said, I would suggest topping off the battery a couple times a day rather than always letting it run down to 20-30% (deep cycling) the battery. Deep cycling is worse for Li-ion batteries. It causes more heat for longer periods of time when you do charge. I would only discharge completely once every few months to keep the battery calibrated.
My personal habit is to top off frequently. If I'm at home, I'll let it charge to a true 100%, like pjc said, then take it off the charger and leave it off till it hits 75-80% and top it off again.
i can add to this discussion what i've learned about lithium-ion batterys
having it plugged in, while it is being taxed heavily (playing games) and already at 100% is a bad idea, then i discharges and recharges all over the time.
When it isn't full and you plug it in to top it off it shouldn't really do any harm, as long as you disconnect it when it's at 100%.
Emptying it completely also lowers overall capacity, 10% is a good threshold when to charge it.
When leaving it off to store it for a while, store it with around 70-75% in the battery. Storing it fully charged also lets capacity down.
creepinshadow said:
i
Emptying it completely also lowers overall capacity, 10% is a good threshold when to charge it.
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I thought you WANTED to do this? I've heard calibrating it is running it until it turns OFF?
Paul22000 said:
I thought you WANTED to do this? I've heard calibrating it is running it until it turns OFF?
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I respectfully disagree with creepinshadow's suggestions. I've read up on lithium ion batteries considerably in the last few years. 10% is not a good threshold to always charge your battery from... that's deep cycling and was great for nickel metal hydride, but isn't good for lithium ion. That said, there's no way for it not to get that low from time to time if you're away from your charger for extended periods and I'm sure it's not going to destroy your battery as fast as one might think.
As for storage, the I charge (or discharge) mine to 40-45% then pop it into the fridge for storage. Read that in a long article explaining how to treat li-ion batteries.
Like you said though, a full discharge for calibration is running it till it turns off then plugging it in while keeping it off until an hour or so after the light turns green.
I've heard many people say that leaving any device that has a battery plugged in won't harm it as long as you're consistant with the charge cycles. Like only plug in your phone when the battery life is >15% and charge it to 100% before unplugging it.
I get into trouble there, because (for instance) say I'm going to be going into the mall for a while and my battery is at 30% and it's going to take me 30 minutes to get the mall (I live in Northern Virginia, traffic is a *****, haha). I'll hook up my phone while I'm in the car just to have extra battery life while I'm away from a charger.
good question, i wanted to know the exact same thing so good to see someone else ask. got the answers i needed.
Look guys... the reality is that this discussion is really just academic. Take my recommendations, for example. It would be ideal if everyone could do what the study I read suggested, but it's not practicable to always top off the battery and not deep cycle the battery frequently. That being said, I'm sure the difference in battery life wouldn't be apparent for a very long time. I can't imagine phone and battery manufacturers haven't thought about this. So...while I've posted my "recommendations" based on that study... just enjoy your phones.
A new battery cost <$50 i'm sure... If you left your phone plugged in over night, every night for a year it probably won't hold a charge better than someone that unplugs in once it reaches 100%..
I personally would rather not deal with always worrying about over charging it and IF i still had the phone when the battery needs to be replaced, just replace it.
In the past 16 months i've had the Touch Pro, Palm Treo Pro, BB Bold & now the N1.. so i never have a phone long enough to even care lol.
I guess that's true. We can always replace the battery, unlike the Fruit people!
But I was just worried that the damage happened quickly. But I guess it's 9-12 months before seeing any real effects anyway.
scottypimpin636 said:
A new battery cost <$50 i'm sure... If you left your phone plugged in over night, every night for a year it probably won't hold a charge better than someone that unplugs in once it reaches 100%..
I personally would rather not deal with always worrying about over charging it and IF i still had the phone when the battery needs to be replaced, just replace it.
In the past 16 months i've had the Touch Pro, Palm Treo Pro, BB Bold & now the N1.. so i never have a phone long enough to even care lol.
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Click to collapse
Actually, it's only $25 from Google.
uansari1 said:
Actually, it's only $25 from Google.
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Click to collapse
Link?
I don't see an accessories page at www.google.com/phone
[Edit]: lol nevermind, you have to click "Get your phone" to get accessories haha
Paul22000 said:
Link?
I don't see an accessories page at www.google.com/phone
Click to expand...
Click to collapse
Lol... click on the link you posted, click "Get Your Phone" and it's listed right below the Dock!
uansari1 said:
Lol... click on the link you posted, click "Get Your Phone" and it's listed right below the Dock!
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Click to collapse
Yeah just saw that. Kind of silly to put it there since people looking for accessories already HAVE a phone. Silly Google
Oh, so by the way, this page brings up a good point:
http://www.google.com/support/android/bin/answer.py?hl=en&answer=175535
Charges at 480mA when installed in Nexus One phone connected to USB, at 980mA when installed in phone connected to charger
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Is there any difference in charging from USB vs AC adapter in terms of how it affects overall battery life?
keeping battery charge levels between 20-80% will allow your battery to maintain its maximum capacity.
drain the battery to 0% and you might find it dies just that little bit quicker the next day.
likewise, you know when charging the progress slows down around 90-100%? - that's the battery inefficiency around the max mark; this is damaging the battery too.
so, is there an app out there that will stop charging the battery when we get to 90%?
tasker can recognise the battery level but it has no action to stop the charging so presume ably its too low level. its also not available in the secure settings add on.
Do you have any links to back up these claims?
Using GT-I9000 my sent Tapatalk 2 from.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries/
Some kernels have these options. Battery life extender, where you can change the maximum charging level. I would guess though that by the time you're really affecting your battery life it will be time to upgrade anyway!
Some kernels have these options. Battery life extender, where you can change the maximum charging level. I would guess though that by the time you're really affecting your battery life it will be time to upgrade anyway!
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Click to collapse
Thanks. I'll look into that. I'd probably leave it at 90% or 95% but 80% is the value I heard. Personnally I find charge doesn't really slow down until 98%.
Mugen batteries can be upto $100 each so I think it's worth protecting the investment and Lithium batteries are the same technology in the brand new Galaxy3 or iPhone4s than it is in a GalaxyS1 etc. So that's my motive.
I experience this too! when my phone are only charged at 90 percent it last more longer !
Battery calibrate.
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vinogradska5a said:
Battery calibrate.
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Click to collapse
Does calibration really needa 0-100. 100-0 then charge again from 0-100 (is the phone needs to ne off while charging?)
Sent from my HTC Sensation XE with Beats Audio Z715e using xda app-developers app
Here's a technical explanation for why this kind of app needs to exist (and why I was Googling this charge-limiting idea tonight to find this thread):
jago25_98 brushed the surface of it in an earlier post, but was blown off. He's dead-on. The top 90-100% of a battery's capacity is very slightly damaging to the battery, which likes to stay in the 3.7-4.0V range (about 30% to 90%). 4.0v to 4.1v is about 90 to 100%, and 4.1v to 4.2v is "you can cram in about 5% more at your own risk" territory. The charge lingers around the 100% mark to cram more power in without exceeding 4.2v. This is why devices are shipped half-charged, not full-charged: the batteries are manufactured at a stable mid-range voltage and charge level. Then, they're tested and returned to that half-charged state for storage (!) and shipping. They like to stay in the middle, not the extreme ends (and definitely not fully discharged).
Charge algorithms are designed solely with capacity in mind, because not much care is put into "how long" something will last. They'd much rather abuse the battery and have the battery (or the device) replaced, than to put a larger battery in to make up for lost capacity by charging only to 80%.
For some of us, we understand that, and we'd like to limit our battery charge so the life of the battery (the capacity it will hold over time) will stand up to the test of time. If treated right, these batteries could last over 10 years. Charging to 100% each day and staying there all night (most of the time, it charges within an hour, leaving it sitting about a quarter of its life at a full charge) is pretty destructive, compared to using an app that caps it at 80% each night, saving the full cycles for monthly battery-meter refreshes.
If it can be done, I'd like to know... I might just dust off my SDK and crack open a "how-to" book to get started. About time I had a good app idea...
Here's some recent media that's brought this issue back to be bumped: http://gizmodo.com/you-should-try-to-keep-it-north-of-50-percent-as-much-619313207
Is that extender in NStools?
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If I remember correctly Mackay kernel - at least up to 4.3 Mackay - has allowed BLX. I think Semaphore allowed this as well in the manager app.
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Soryuu said:
If I remember correctly Mackay kernel - at least up to 4.3 Mackay - has allowed BLX. I think Semaphore allowed this as well in the manager app.
Sent from my GT-I9300 using Tapatalk
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Click to collapse
Yes, I'm using Mackay Kernel+Rom ( 4.4.2 KK ) and you can find the BLX (battery life extender) in Mackay Settings tab.
Sorry for digging up this long submerged thread.
I'm quite interested in the idea of getting my phone to charge between 40-80% while I plug in my phone overnight. I wish to maximise the longevity of the battery on my phone. I'm thinking about using the app "Tasker" together with a Wifi controlled power switch. Has anyone done that?
(PS. I don't use a Galaxy S I9000 phone. Just searched and found this randomly)
FalconFour said:
Here's a technical explanation for why this kind of app needs to exist (and why I was Googling this charge-limiting idea tonight to find this thread):
jago25_98 brushed the surface of it in an earlier post, but was blown off. He's dead-on. The top 90-100% of a battery's capacity is very slightly damaging to the battery, which likes to stay in the 3.7-4.0V range (about 30% to 90%). 4.0v to 4.1v is about 90 to 100%, and 4.1v to 4.2v is "you can cram in about 5% more at your own risk" territory. The charge lingers around the 100% mark to cram more power in without exceeding 4.2v. This is why devices are shipped half-charged, not full-charged: the batteries are manufactured at a stable mid-range voltage and charge level. Then, they're tested and returned to that half-charged state for storage (!) and shipping. They like to stay in the middle, not the extreme ends (and definitely not fully discharged).
Charge algorithms are designed solely with capacity in mind, because not much care is put into "how long" something will last. They'd much rather abuse the battery and have the battery (or the device) replaced, than to put a larger battery in to make up for lost capacity by charging only to 80%.
For some of us, we understand that, and we'd like to limit our battery charge so the life of the battery (the capacity it will hold over time) will stand up to the test of time. If treated right, these batteries could last over 10 years. Charging to 100% each day and staying there all night (most of the time, it charges within an hour, leaving it sitting about a quarter of its life at a full charge) is pretty destructive, compared to using an app that caps it at 80% each night, saving the full cycles for monthly battery-meter refreshes.
If it can be done, I'd like to know... I might just dust off my SDK and crack open a "how-to" book to get started. About time I had a good app idea...
Here's some recent media that's brought this issue back to be bumped: http://gizmodo.com/you-should-try-to-keep-it-north-of-50-percent-as-much-619313207
Click to expand...
Click to collapse
I am thinking, if Android app can't limit battery charging level, at least there should be an app that shows some sort of notifications when charging has reached a certain level set by users.
There is an app for it. Battery Charge Limit.
jago25_98 said:
keeping battery charge levels between 20-80% will allow your battery to maintain its maximum capacity.
drain the battery to 0% and you might find it dies just that little bit quicker the next day.
likewise, you know when charging the progress slows down around 90-100%? - that's the battery inefficiency around the max mark; this is damaging the battery too.
so, is there an app out there that will stop charging the battery when we get to 90%?
tasker can recognise the battery level but it has no action to stop the charging so presume ably its too low level. its also not available in the secure settings add on.
Click to expand...
Click to collapse
You can get this app https://forum.xda-developers.com/android/apps-games/root-battery-charge-limit-t3557002 here. It also has tasker integration
Whats your way of keeping your nexus 7 battery healthy? I wanna keep it as healthy as I can for as long as possible. Nothing irritates me more than having a battery lose its charge faster and faster every day. Just to be clear im not asking how to prolong battery usage between charges; I'm asking how to keep it from losing its charge quicker and quicker when the power usage is relatively the same. One thing I do know is once it the battery hits 100% to take it off the charger. One thing i have heard is try not to let the battery dip below 50% and rarely let it completely discharge but I have also heard to ALWAYS let it die out by completely discharging. Feel free to add to the myths, folklore but preferably facts on how to keep the battery healthy and holding its charge very well
N7 has Lithium polymer battery, right?
Well then read about it https://en.wikipedia.org/wiki/Lithium_polymer_battery
But from what I heard: rather charge it then let it drain below 30%, don't let it charge too long, and so on - probably the same stuff you heard or read yourself
but that's something that upsets me: no chance to replace the battery. Used my DHD for 2 years and after those 2 years the battery was just ****ty. Replaced it, works like a charme. On N7 or TF300T there's no chance to replace the battery. Right now I'm using TF300T very often when I'm not at home, so even with dock and tablet it'll most probably go below 20%...well if that's bad for my battery, then I don't know what to do if it doesn't last an entire day :-/ (though that'll take some time)
Certainly I wouldn't let the Nexus battery completely drain but maybe down to 5 % then fully charge
Sent from my Nexus 7 using xda app-developers app
l33ch0r said:
N7 has Lithium polymer battery, right?
Well then read about it https://en.wikipedia.org/wiki/Lithium_polymer_battery
But from what I heard: rather charge it then let it drain below 30%, don't let it charge too long, and so on - probably the same stuff you heard or read yourself
but that's something that upsets me: no chance to replace the battery. Used my DHD for 2 years and after those 2 years the battery was just ****ty. Replaced it, works like a charme. On N7 or TF300T there's no chance to replace the battery. Right now I'm using TF300T very often when I'm not at home, so even with dock and tablet it'll most probably go below 20%...well if that's bad for my battery, then I don't know what to do if it doesn't last an entire day :-/ (though that'll take some time)
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You can change the battery on the nexus 7. Its actually relatively easy and simple to do so. I havent had the need to replace it but I did have to disconnect it. Just pop off the back with your choice of apparatus. I used a small flat head that i could wedge between the sides but a guitar pick is another popular choice. Then just disconnect the wire and take the battery out! no screws just slight pressure holding it in. right here is a guide with pictures showing it step by step.
What I would do is time my charges. In my experience, my Nexus 7 gets fully charged in 2 and a half hours from 20% battery. I then take it out immediately so that in won't get hot(sometimes it does, and also to save energy.:good And also, if after 3 days my battery is still 50% or above, I drain it to 20% then charge since Li-ions tend to not want to get not drained often.xD
Charge early and often and keep out of extreme temperatures. It boils down to that.
If you can, charge it nightly. Try to avoid discharging below 20%.
And a little myth busting... There is no need for you to manage its charging cycle, it will do that itself. Charging a LiIon/LiPoly battery partially is NOT a "charge cycle".
If you're actively using your Nexus 7, just charge it as often as is reasonable, nightly should be just fine. If you're NOT using it for an extended period of time, discharge it to 50%, turn it completely off and store it in a cool (20c/70f range) location.
AW: Tips on keeping the N7 battery healthy
?! i was told i should drain it under 20% more often -.- oh well, my battery is going to be the first dying
Sent from my Galaxy Nexus using xda premium
The battery's are $20 for a new one so as long as it lasts a year I don't mind buying another one. In another question has any one bought a replacement battery yet? And if so does the charge last about the same as stock?
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fushla said:
?! i was told i should drain it under 20% more often -.- oh well, my battery is going to be the first dying
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Nope, that was NiCad information, LONG LONG AGO. LiIon/LiPo, charge early and often.
Everything you could need to know:
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Sent from my N7 using XDA Premium
Dirty AOKP 3.5 <&> m-kernel+ a35 (t11)
My advice : Charge it when it's between 20%-30%. That's the ideal charge point. Any lower and you're just damaging the battery and any higher is just a waste. As for immediately plugging it out once it hits 100% is utter bull. You see, these modern day batteries found in most phones/tabs have their own resistors which decide how much power enters the battery or if it should enter at all. Once a battery hit's 100%, the resistors kick in and block all incoming power. The "discharging" many believe to happen if we over charge beyond 100% doesn't exist. What happens if you leave a phone or tab alone idly ? It discharges like always. Same thing here, which is why you see your battery bouncing from 100% down to 97%. When that happens, the resistors will allow power back in and thus charging it back to 100%. So you can leave it charging all night and not having to worry about it going beyond 100%. It'll get it's own sh!t together .
So bottom line :
1. Charge when it hits 30%-20%.
2. Don't discharge it (0%) and back to 100%. It doesn't work on modern batts.
3. Don't worry about pulling out when it touches 100% immediately.
Enjoy your tab
RohinZaraki said:
My advice : Charge it when it's between 20%-30%. That's the ideal charge point. Any lower and you're just damaging the battery and any higher is just a waste. As for immediately plugging it out once it hits 100% is utter bull. You see, these modern day batteries found in most phones/tabs have their own resistors which decide how much power enters the battery or if it should enter at all. Once a battery hit's 100%, the resistors kick in and block all incoming power. The "discharging" many believe to happen if we over charge beyond 100% doesn't exist. What happens if you leave a phone or tab alone idly ? It discharges like always. Same thing here, which is why you see your battery bouncing from 100% down to 97%. When that happens, the resistors will allow power back in and thus charging it back to 100%. So you can leave it charging all night and not having to worry about it going beyond 100%. It'll get it's own sh!t together .
So bottom line :
1. Charge when it hits 30%-20%.
2. Don't discharge it (0%) and back to 100%. It doesn't work on modern batts.
3. Don't worry about pulling out when it touches 100% immediately.
Enjoy your tab
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Thank you, you mythbusted almost every battery myth there is.
__________________
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GT-P3100 | Android 4.0.4 ICS | Sun Cellular
PM me if you need help
AW: Tips on keeping the N7 battery healthy
Okay.. Since I did everything wrong with charging...
Is it okay to reboot the device while charging? Or is it bad for my battery.. :/
Sent from my Nexus 7 using xda premium
fushla said:
Okay.. Since I did everything wrong with charging...
Is it okay to reboot the device while charging? Or is it bad for my battery.. :/
Sent from my Nexus 7 using xda premium
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Nope. Reboot away. Remember, the only harmful thing you can do and see immediate effects are charging the battery in a very hot enviroment or if you charge it when the battery is 40-50 degrees celcius. It'll either swell up or it'll just catch on fire or explode.
I've been wondering this for a while but can't find much on the web. I was wondering if charging my battery when it's not completely dead will ruin battery efficiency? If for instance my phone is 30% and I'm going to need it for the night is it fine to charge it without the worry of damaging the battery. I'd assume our phones are advanced enough it wouldnt matter but figured I'd ask
Sent from my HTCONE using xda premium
mlese92 said:
I've been wondering this for a while but can't find much on the web. I was wondering if charging my battery when it's not completely dead will ruin battery efficiency? If for instance my phone is 30% and I'm going to need it for the night is it fine to charge it without the worry of damaging the battery. I'd assume our phones are advanced enough it wouldnt matter but figured I'd ask
Sent from my HTCONE using xda premium
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Yes, you will be fine. I cant even run my phone out anymore.
Charge away!
mlese92 said:
I've been wondering this for a while but can't find much on the web. I was wondering if charging my battery when it's not completely dead will ruin battery efficiency? If for instance my phone is 30% and I'm going to need it for the night is it fine to charge it without the worry of damaging the battery. I'd assume our phones are advanced enough it wouldnt matter but figured I'd ask
Sent from my HTCONE using xda premium
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Au contraire, mon frere. Keep your phone as charged as possible. IF YOU LET YOUR PHONE DIE, IT WILL LOSE CAPACITY. That's all there is to it. Charge it as much as possible, except if the battery is hot. If so, reboot, and let it cool for 5 mins, then charge it.
The first 2 days after I got my phone my battery was dying pretty fast but now that I've had it for a week it's lasting much much longer now.
Sent from my HTCONE using Tapatalk 4 Beta
sauprankul said:
Au contraire, mon frere. Keep your phone as charged as possible. IF YOU LET YOUR PHONE DIE, IT WILL LOSE CAPACITY. That's all there is to it. Charge it as much as possible, except if the battery is hot. If so, reboot, and let it cool for 5 mins, then charge it.
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Not entirely true. Try to avoid the high end of the charge scale if you can, because then you're banking entirely on the assumption that the onboard controller will correctly charge-cycle the battery from the 95%-100% states. I just don't trust the onbaord that much.
mlese92 said:
I've been wondering this for a while but can't find much on the web. I was wondering if charging my battery when it's not completely dead will ruin battery efficiency? If for instance my phone is 30% and I'm going to need it for the night is it fine to charge it without the worry of damaging the battery. I'd assume our phones are advanced enough it wouldnt matter but figured I'd ask
Sent from my HTCONE using xda premium
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No. That used to be a problem with older batteries (where it was known as the memory effect), but current-generation Lithium-ion batteries only suffer from this to an essentially unnoticeable extent. If you drop the battery below 10% or so too often (a deep discharge), you can prematurely erode your capacity. It's a good idea to do this once a month or so to keep things running smoothly, but other than that there's no problem with charging/discharging whenever (outside of force of habit and pride-- you can't boast about long battery life if you're charging often, after all).
Rirere said:
(outside of force of habit and pride-- you can't boast about long battery life if you're charging often, after all).
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I STILL don't get it. How one earth does anybody get decent battery life on this phone, let alone those RIDICULOUS 5 hour screen times? I'm assuming there's no way without rooting, though. I can barely get 2 hours of screen time. And my power saver is always enabled!
Appx 35% of my battery is consumed by kernel. About 20% by the OS.
sauprankul said:
I STILL don't get it. How one earth does anybody get decent battery life on this phone, let alone those RIDICULOUS 5 hour screen times? I'm assuming there's no way without rooting, though. I can barely get 2 hours of screen time. And my power saver is always enabled!
Appx 35% of my battery is consumed by kernel. About 20% by the OS.
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I can just speak for myself. I root my phones before I use them so I have no idea how much better it is.
These guys who make the roms do some amazing stuff and take out a lot of crap to make our phones run better and faster. In that process, the battery life really improves.
I just got a "tip" from Motorola telling me that its best to charge my phone to 100% whenever I'm near an outlet and that they RECOMMEND charging the phone overnight to accomplish this. Are they trying to make my battery die quicker or something? Am I missing something about newer cell phone batteries that allow for constant recharging over the course of a single night without killing the battery?
Apparently, you can charge some of the newer phones and tablets overnight and not have to worry about overcharging. These newer batteries are supposedly able to stop taking charge once they reach full capacity. I've Google'd this a few days ago and several users on several forums from different sites are all saying the same thing. However, although you can charge it overnight without having to worry about overcharging, heat conduction while having the battery charge might be excessive enough to damage the battery.
I leave the phone on charger all night every night and i haven't really noticed any changes in battery.
Sent from my XT1056 using xda app-developers app
I've been doing this for years with no problems ever.
Sent from my XT1056 using Tapatalk 4
I've always left every single one of my phones to charge overnight. Do some people really take it off the charger as soon as it's charged? That seems like a waste to me, as you're using battery charge that you could otherwise be using throughout the day.
mrbradeli said:
I just got a "tip" from Motorola telling me that its best to charge my phone to 100% whenever I'm near an outlet and that they RECOMMEND charging the phone overnight to accomplish this. Are they trying to make my battery die quicker or something? Am I missing something about newer cell phone batteries that allow for constant recharging over the course of a single night without killing the battery?
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That Motorola tip is total BS. It doesn't matter whether you charge it to 100% and you certainly don't need to charge it overnight to accomplish that although it's fine if you do.
Good to know. Glad batteries aren't as finicky as they used to be.
Sent from my XT1053 using xda app-developers app
clankfu said:
That Motorola tip is total BS. It doesn't matter whether you charge it to 100% and you certainly don't need to charge it overnight to accomplish that although it's fine if you do.
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I think the newer batteries today become worse based on the number of cycles you put them through. Further, letting your phone only go donw to 80% before charging it back up again causes less strain on the battery and isn't a full cycle. The more cycles your phone goes through the less of a charge it can hold. This is why many people report to charge your phone as much as possible because it is actually better for you to leave it charging all the time instead of doing a battery cycle.
Many battery monitor softwares require you to recalibrate the batteries capacity to hold a charge after a certain number (often 30) cycle have been performed. And they consider cycles depleting your battery pass a certain percentage (ex. 70% or something). I did a decent bit of research a while ago and this was the information that I gathered from all of it.
jayboyyyy said:
I think the newer batteries today become worse based on the number of cycles you put them through. Further, letting your phone only go donw to 80% before charging it back up again causes less strain on the battery and isn't a full cycle. The more cycles your phone goes through the less of a charge it can hold. This is why many people report to charge your phone as much as possible because it is actually better for you to leave it charging all the time instead of doing a battery cycle.
Many battery monitor softwares require you to recalibrate the batteries capacity to hold a charge after a certain number (often 30) cycle have been performed. And they consider cycles depleting your battery pass a certain percentage (ex. 70% or something). I did a decent bit of research a while ago and this was the information that I gathered from all of it.
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Right. It is better to charge your phone as much as possible because your battery is capable of only a finite number of full cycles. My only contention is that it is not required that you charge it to the full 100%. In fact, they say that it's actually better for Lithium-ion batteries to hold partial charges.
Never charging the battery to 100%, nor depleting it to 0% will allow you to more get more out the battery overall. But keeping it on a charger means that you shouldn't even be using the battery.
I keep mine on charge overnight, and if I weren't worried about wearing out the USB port, I'd put it on a charger when in the car, while at my desk at work, etc...
Acc. To motorola cust. Care
mrbradeli said:
I just got a "tip" from Motorola telling me that its best to charge my phone to 100% whenever I'm near an outlet and that they RECOMMEND charging the phone overnight to accomplish this. Are they trying to make my battery die quicker or something? Am I missing something about newer cell phone batteries that allow for constant recharging over the course of a single night without killing the battery?
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Click to collapse
SO i contacted motorola through help and they warned me to not charge my phone overnight every night because it would "DRAIN" my battery.
however they said it was ok occasionally
that's a bummer cos it is pretty convenient :/
shreymalhotra96 said:
SO i contacted motorola through help and they warned me to not charge my phone overnight every night because it would "DRAIN" my battery.
however they said it was ok occasionally
that's a bummer cos it is pretty convenient :/
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Sorry but whoever told you that is misinformed. No harm will come to the phone / battery from charging overnight unless you use a dodgy fake charger. I've charged all my phones overnight since my Motorola MicroTac in 1995 and have never had a battery / phone fail because of it.
All Motorola devices have good battery protection software, it won't hurt it to charge overnight. Short charging sessions are better for your battery but it makes no sense to worry about that either. The only way to hurt your battery is if you stuff a charge by letting it fill, then unplugging an plug it in several times. This can "top off" your battery and give you a little more charge but at the risk of damage and shortening your battery life. I personally don't recommend it. I have Anker backup battery if things get desperate or if I am out all day.
Sent from my HTC6525LVW using XDA Free mobile app
Well yeah, how about Apple doing it and everyone else pursuing? prolonged charging IS damaging your battery. If you use a Chargie device (https://chargie.org) during your overnight charging you might prevent this, since it delays and limits the charging pattern to a safe value. But otherwise nobody in 2021 recommends leaving your phone charging overnight.