Battery percentage - Xiaomi Mi A2 / 6X Questions & Answers

I do not understand why the percentage of the battery as soon as I turn on the phone after a full charge immediately indicates 98% and not 100%, even if the display shows off the full charge as soon as I remove the charger.

It's probably because your 100% battery level is nearing on 99% and every reboot, based on my experience, more often than not consumes 1%, maybe more, hence, 98% battery left.

trxjam said:
I do not understand why the percentage of the battery as soon as I turn on the phone after a full charge immediately indicates 98% and not 100%, even if the display shows off the full charge as soon as I remove the charger.
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I'd suggest varying how you charge the phone; 1) with the phone on 2) with the phone off
My (albeit anecdotal) experience is that when charged with the phone on, and left on the charger longer than when it says 100%, it's doing a 'trickle' charge, which then seems to charge it completely. Again, anecdotal, but it seems to me that after charging it numerous times with it on, then when I charge it turned off it seems to do a *full* charge.
ymmv

maybe I explained myself badly. in the evening I put the phone off and off. In the morning as soon as I accrue it, instead of marking 100%, it will score 98% .If it is when I unplug it from the charger and it is still off and it is 100% .

Related

Battery failure or soft/hardware glitch?

My Kaiser never had great battery life, 12 hour max.
But nowdays its just ridicilous, device turns itself off during calls. This is normal due battery failures.
But the real question that I am asking: Is it normal that battery indicator is not accurate at all? Ill give a few examples.
1) I charge the battery overnight (7 hours). When I wake up, it says 100% battery, but I notice that orange LED is not lit (not charging). I restart the phone, still 100%. I shut it down, remove battery, plug it back in, start the phone and it says 80% battery? Has the phone stopped recharging when it hit 100% the first time?
2) I'm making a call. 70% Battery. Phone shuts down. I restart it. Battery 70%. I shut it down, remove battery, plug it back, start the phone and it says 0% battery.
3) Battery 10%. I charge it to 100%. Shut down, remove battery, plug it back in, restart phone. Battery 75%. Recharge it to 100%. Shut it down, remove battery, plug it back in, restart phone. Battery 85%. Recharge it to 100%, repeat this few times and I finally get to "real" battery charge of 95%. And the phone stays on the whole day.
Seems that my phone is a BIT too optimistic about the 100%
I'm just hoping this is all about the fact that the battery is dying. Ordered a new one few days ago.
Same problems with WM 6.0 and 6.1.

Battery live

I would like to find out what is the best charging strategy to extend the life of your phone battery. Is is better to use the phone all day and charge at night for 8 hours? Or is it better to plug in while working in the office? Should I not charge the phone that night if I have more than 50% left at the end of the day? Is less charging cycle better for the battery?
Since HTC One does not have replaceable battery, I need to make sure my battery will last at least the 2 years of my contract.
Try to charge as often as possible to keep it topped off. Avoid letting the phone drain completely. However, it has been noted it's good to let the phone completely drain once every month or two to calibrate the battery.
Doesn't really matter what schedule you use, nor does keeping it plugged in hurt any. Whether you charge it starting at 80% or 40% won't make any difference.
Personally I don't want to be plugging/unplugging my phone frequently throughout the day. My method is very simple: I use the phone all day like a normal person, and let it charge overnight on the night stand. The kernel, of course, won't allow the battery to be overcharged from keeping it plugged in all night.
There's a science to all this, but it isn't really worth it!
It has been suggested that Li-Ion (and in this case, Li-poly) remain at half charge for best battery life (about 0% - 60%). Keeping batteries at 100% (in the case of overnight charging) or near 0% (in the case of letting it run out) can be harmful, but you probably won't notice it..
What I do:
-Use the supplied AC adapter and USB cable as each is made specifically to support the One (other AC adapters are clocked in at different voltages and certain USBs don't supply the same power).
-Installed Battery Monitor Widget (or you can install CurrentWidget) to keep an eye on the incoming current (and sometimes outgoing).
-Lately I've been letting my battery drain to 0% to get an initial calibration set up since the phone is new (<4days old). I've been "bump charging" the device:
Go to settings, select power, uncheck fastboot
Let battery drain to 0%
Connect to charger and charge all the way to 100% MAKING SURE that the incoming current is 0 (sometimes it's at 100% but it's still charging)
Shut off device and charge for approx 30min (will turn green, but continue waiting to ensure it maxes out the battery)
unplug, boot phone up, and wait till the phone is fully on, then plug in the charger again
Wait till the LED is green @ 100% and 0 current
Unplug after 0 current and then replug 5 minutes later, waiting again for it to reach 100% and 0 incoming current
Enable fastboot
Do the above maybe once a month? I'm going to do it maybe 1 or 2 more times (only have done it once) this month to ensure proper calibration. Doing this too often will probably damage your battery. Just do it once a month or as many times you feel comfortable. It's a bad idea to keep topping it at 100%
I do the above before I sleep, and as I sleep I just turn on airplane mode, close all running apps, and let it sit there till the morning where I have Tasker set up to disable airplane mode, enable wifi, syncing, and change my ringers 15 minutes before my alarm on the phone goes off.
On normal days (normal charge) I just let it finish the charge BEFORE I sleep, wait till it hits 0mA current and then just pull it off the plug. In the morning I would have only lost 1 or 2% and can get on with my day without worries. Ideally, the battery should remain around 50%. Doing so will probably increase the longevity of its life.

Sony z1 charge stop at 5%.

Problem started yesterday,phone charge till 5% and than stop,it still says charging but its not.
try to get some battery apps to fix it and try a new cable...
Battery Fix
This is an issue with battery calibration (or so I assume).
What you will need to do is:
Leave the phone for at least 36 hours. Make sure that you keep the phone turned on for as long as possible.
Once you have left it for 36 hours, connect the charger and charge for a whole 10 hours.
Then, turn on the phone and it will possibly show that the battery is at 100%. If not, you need to install an app called CurrentWidget: Battery Monitor. It is available here: https://play.google.com/store/apps/details?id=com.manor.currentwidget
This app will tell you the voltage/current stored in the battery. If the mAh of the battery is 3000 mAh when left charging for 10 hours, then you will need to do this:
Fully charge the battery with the phone for 5 hours and when the phone is fully charged, unplug the charger and turn it off.
When your phone is off, plug it into the charger and let it charge to 100% again. The green LED light will indicate when this is done.
Next unplug the charger, turn on your phone and set the option to ensure that your screen doesn’t turn off, if you have this option. Then reconnect to the charger and wait for it to charge again to 100%.
Once loaded to 100%, unplug the charger again and do not load until the smartphone turns itself off after reaching a 0% battery level. Once off, fully charge it again and it should work properly. The screen setting can put back to normal again (meaning turn off after a certain amount of time).
Hope this helped!

Phone dies at 5%

How can I calibrate my unrooted phone
Sent from my Nexus 6 using XDA Free mobile app
You can't. Even if you are rooted.
Run your battery all the way down until it shuts off. Charge, uninterrupted, until fully charged. Voila! Battery calibrated.
Battery calibrating apps/techniques have been useless for quite some time.
carlz28 said:
You can't. Even if you are rooted.
Run your battery all the way down until it shuts off. Charge, uninterrupted, until fully charged. Voila! Battery calibrated.
Battery calibrating apps/techniques have been useless for quite some time.
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My phone has gone through many charge and shutdown cycles and not even this has changed my 5% shutdown.
Have you tried leaving your phone plugged in after 100%? Let it trickle charge for an hour or two.
The battery 'calibration' stuff that people do is what android does automatically after getting to nearly full charge.
It hasn't been needed since gingerbread.
I have had this issue happen a few times, what I do is plug it in to turn it on , then try to run it down till 0 and then put it on charge while off till its 100% and leave it there for a few hours. Then after a few cycles, this occurs again. I dont charge in the middle, always charge at night until 100% and 30 minutes beyond that.

Incomplete battery charge

Hello, lately I can not charge the battery more than 98% and in some cases 97%
I already use the method to calibrate the battery but it continues the same.
Only if I disconnect the charger and reconnect it reaches 100%
Any solution?
In my case the same thing happens.
I have not found a solution yet.
Charging it off turns it 100%, turning it on 98% and then on to 100% again.
in 5 minutes it goes down to 96%, and then the battery is safe.
I have a good time to use the battery, since I stayed 18 hours away from the charger.

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