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I have had my Galaxy S for a bit over a week now and am pretty disappointed with the battery performance. Most days I take my battery off the charger at 7am and it reaches 15% low battery warning by 1-2pm. I do spend a fair amount of time reading XDA and listening to music. I'm currently running Stock JM1 firmware with no lagfixes.
Here's a list of my apps that I have installed:
http://www.appbrain.com/user/Lokhor/apps-on-the-samsung-galaxy-s
I am running JuiceDefender which I thought would make a big difference and does not. I have also set Tasker to change the Brightness level to 20 (below the safety threshold) when the battery reaches 50% or below, otherwise the brightness is at the minimum (30%).
I have heard that you need to condition the battery so I have been trying to do this but it doesn't seem to have had much effect. Today I used my phone only casually and it's currently at 22% after 12.5 hours. The battery use details show the following:
Display at 56% being on for 2h22m and 13s.
Cell Standby 18% Time on 9h21m, time without signal 13%
Phone Idle 7% Time on 7h33m
Android System 5% CPU usage 23m39s CPU foreground 24s
Android OS 3% CPU Usage 13m 27s
Is this normal? Is there anything I'm doing wrong?
Please help
I don't know what others are telling you about conditioning a LiIon battery but you don't have to. LiIon batteries don't suffer from what NiCad do. Some do suggest wearing the battery down to nil and then charging it up again. However, this is pretty bad for the battery and should not be done more than once every 30 cycles. With every LiIon battery I've ever owned I've either trickle charged it or charged it when it wasn't too low and they've all lasted over 3 years. I've never conditioned one.
Anyway, my advice to you is to see how long your battery lasts in standby. Mine could probably last 3 days or more if I don't bother it too much (with sync, wifi and all that good stuff). I find the worst contender for battery drain is the display. The only problem I see with your stats there is that I've played Asphalt5 for around an hour and a half which is quite heavy on juice and it only drains roughly 10%-15%. Then again you're browsing the web so maybe probably worse.
Oh, and when charging your phone, don't use the USB hooked up to a computer as it doesn't stop charging when it's full. Use the wall charger to charge.
no need to worry more
just get this http://forum.xda-developers.com/showthread.php?t=733705
lokhor said:
I have had my Galaxy S for a bit over a week now and am pretty disappointed with the battery performance. Most days I take my battery off the charger at 7am and it reaches 15% low battery warning by 1-2pm. I do spend a fair amount of time reading XDA and listening to music. I'm currently running Stock JM1 firmware with no lagfixes.
Here's a list of my apps that I have installed:
http://www.appbrain.com/user/Lokhor/apps-on-the-samsung-galaxy-s
I am running JuiceDefender which I thought would make a big difference and does not. I have also set Tasker to change the Brightness level to 20 (below the safety threshold) when the battery reaches 50% or below, otherwise the brightness is at the minimum (30%).
I have heard that you need to condition the battery so I have been trying to do this but it doesn't seem to have had much effect. Today I used my phone only casually and it's currently at 22% after 12.5 hours. The battery use details show the following:
Display at 56% being on for 2h22m and 13s.
Cell Standby 18% Time on 9h21m, time without signal 13%
Phone Idle 7% Time on 7h33m
Android System 5% CPU usage 23m39s CPU foreground 24s
Android OS 3% CPU Usage 13m 27s
Is this normal? Is there anything I'm doing wrong?
Please help
Click to expand...
Click to collapse
I found that charging it whenever it was convenient instead of when it was low would result in a charge that lasted ~24 hours.
I've noticed significant increase in battery life since I started waiting for the 15% charge warning, plugging it in till it was full and then unplugging it. I get 2-3 days of use this way.
I also set my email to only sync between 6 AM and 11 PM. I believe this helps a lot as well.
since we are about this topic, check this out
How to spot fake battery vs. OEM battery: http://forum.xda-developers.com/showthread.php?p=7953322
so if I'm listening to music during the day at work should I have my phone plugged into the wall charger or just let the battery run down?
Last night I took the charger off at midnight when it was full and when I woke up it had only dropped 5%. After reading my emails quickly it was at 93%.
it works fine either way
read this
http://forum.xda-developers.com/showthread.php?t=769208
I find leaving the brightness on automatic uses up loads of battery. Setting it to lowest seems to make the phone last 24hrs+
I also found that having beautiful widgets clock/weather installed used up a lot of battery for some reason.
I don't use weather because it has to sync every so often to update it which to me is a waste...I'll just look outside. I also leave brightness on the lowest setting wherever I am as the screen is already very bright (why waste battery?).
My experiences with my SGS have taught me to be conservative with its battery. Anytime you turn the screen on, you eat power like crazy. The best bet is to just top her off whenever the need arises. Personally, I have found that I'm fine just topping her off in the car when I'm driving, so that I start my work day at high 90's, and especially once I've got my morning browsing out of the way, I don't eat a big chunk of battery at any other time.
But yes, if you find you are running low, you can happily just take a half hour to charge from a USB port to give you an extra boost. Alternatively, spare batteries and so forth do the same thing, although it can be annoying if you don't have a charger that will do the phone and a spare battery at once.
im experimenting with apndroid now to turn of 3g then i dont specifacly need it. It comes with an on/off widget. Looks promising so far. 40% at 2300 hour and then i have used wifi a bit, played angry birds and talked for about 2 hours in total.
I've owned the Samsung Focus S now for 12 days. I came from an android bionic. I have owned Windows Phones before, the Venue Pro and the Hd7. But this is my first Samsung.
For the first few days, the battery life was fine, a full day. But this past week I find my self hard pressed to reach a full work day. I don't play music during the day nor do I have many, if any calls. Mostly SMS and internet.
I've turned off as many background tasks as acceptable, limited the number of live tiles, set brightness to auto, and check email off of push. Yet this morning I reached 20% in about 8 hours.
In addition, I find the time to charge is extremely long. It might take 4-6 hours to fully charge from 80%.
Is this normal for a Samsung?? My other windows phones, and my bionic certainly do no present the same battery problems as this one does.
Thoughts, or is this usual?
Do you have wi-fi turned on? This is a real battery burner...
My Focus S usually goes through about a day and a half before I need to recharge. That's with a few phone calls, some messages, a bit of wi-fi browsing at night, etc. Email only gets checked every hour but it's on 3 different accounts.
drtolson said:
Do you have wi-fi turned on? This is a real battery burner...
My Focus S usually goes through about a day and a half before I need to recharge. That's with a few phone calls, some messages, a bit of wi-fi browsing at night, etc. Email only gets checked every hour but it's on 3 different accounts.
Click to expand...
Click to collapse
while I'm home WiFi is on. Away from home its off. This is normal behavior for all my phones. All of them last at least 18-24 hrs, under the same condition.
Took it back to art. They said , lets try a different battery. I'm willing to try it for now.
I just wanted to add to this as I seem to be experiencing a similar issue.
I purchased my phone at the end of Dec, it's been great.
Now, since around a week ago I've been having issues. I used to get roughly 2 days use per charge and it used to charge quickly.
Now, the phone runs hot, the battery drains in 6 hours or less, and it takes many hours to recharge.
I turned off the one app running in the background. I turned off wi-fi. It doesn't seem to help. The battery itself doesn't seem to be too hot, but it's hard to judge.
tinyiota said:
I just wanted to add to this as I seem to be experiencing a similar issue.
I purchased my phone at the end of Dec, it's been great.
Now, since around a week ago I've been having issues. I used to get roughly 2 days use per charge and it used to charge quickly.
Now, the phone runs hot, the battery drains in 6 hours or less, and it takes many hours to recharge.
I turned off the one app running in the background. I turned off wi-fi. It doesn't seem to help. The battery itself doesn't seem to be too hot, but it's hard to judge.
Click to expand...
Click to collapse
I did a factory reset, and got a new battery. I then reinstalled less than half of my existing apps. In addition I've set my display brightness to medium.
Battery life has doubled, and the charging is much quicker.
Read an article yesterday about ads in free apps eating about 35% more battery. Who knows.
Even if they're running in the background? My Focus S takes a lot of time to charge and decharges so fast. 35% is no joke.
---------- Post added at 07:41 AM ---------- Previous post was at 07:40 AM ----------
Even if they're running in the background? My Focus S takes a lot of time to charge and discharges so fast. 35% is no joke.
I'm also having some kind of battery issue, I have 2 batteries and they are both 100% charged but by the end of the day one is completely dead and the other is about 20%. I use my phone a lot for music and browsing over 4g and WiFi, but I charge by battery to 100% then go to the battery saver setting and at 100% it says time remaining about 5 hours. An when I turn on battery saver it says about 6 hours. On a full charge this seems crazy. Also with the homebrew battery monitor app. It says my phone is using over 4000mV. With screen set to low and in airplane mode. This is wierd.
Sent from my SGH-i937 using Board Express
goldenpipes said:
I'm also having some kind of battery issue, I have 2 batteries and they are both 100% charged but by the end of the day one is completely dead and the other is about 20%. I use my phone a lot for music and browsing over 4g and WiFi, but I charge by battery to 100% then go to the battery saver setting and at 100% it says time remaining about 5 hours. An when I turn on battery saver it says about 6 hours. On a full charge this seems crazy. Also with the homebrew battery monitor app. It says my phone is using over 4000mV. With screen set to low and in airplane mode. This is wierd.
Sent from my SGH-i937 using Board Express
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Click to collapse
4000mV? I assume you mean mA? not mV? 4000mV is only 4V which is about right, your voltage shouldn't change much, perhaps +-10% tops
if you do in fact mean Amps...
4000mA is 4A an hour, your battery would be dead in about 20 min at that rate and probably in fire as well
So, lets look at this in a different way,
2 batteries, that's about 3.3Ah max, you only had about 20% left in one which is approx 330mA so lets call it an even 3A of juice burned during your day.
An Average long day at work 12 hours
that's 250mAh current draw every single hour of that 12 hour day.
250 is quite high, but normal with the screen on and high brightness an wifi, however that isn't normal if you are normal and don't sit at your phone each hour for an hour for a whole day.
Things that can send your phone off on a amp burning spree? most common one is the backlight, set it to auto, and have a dark /black theme, AMOLED is the opposite to normal LCD screens where having a white background was best,
Next up is your signal strength, low 3G signal will eat your battery (4G is worse but thankfully we don't have that)
keep battery saving on all the time, it only kicks in when it needs to but I have seen dramatic differences having it turned off even with a full battery, im not sure what it changes when its not down to low battery but it does something.
background tasks can play a part but are minimal on WP.
I have 3 accounts on push sync, wifi and Bluetooth always on (but not always connected), I use it a lot during the day including several phone calls and web browsing, I start work at 8am, finish at 7 or 8 PM and im still sitting with 50% battery...
that works out at an average of just under 70mAh. that's about the normal level id expect, its double that if I turn battery saver off (even though it wont kick in until the last hour of the day)
oh I can make it go quicker when I show off the full capability's of our screens too
So I've had my phone a little over a month now and i never got amazing battery life, but compared to other phones it was solid. However, i see people with 6-7 hours of screen on time, when i struggle to squeeze 4 out of my phone. Typically i get down to about 10% with 17 hours total and 3.5 hours of screen on time. Also my phone usually turns off at 5-10% randomly, is this normal? Lastly, every so often if i let the battery run down until it turns off (8% or so) i get a screen that shows the battery sign with an exclamation mark on the inside. Is my phone defective or are peoples battery stats a matter of difference in usage.
SOT heavily depends on use and screen brightness.
I always get 6-7, auto brightness, no gaming.
Yes but I'm saying i get a max of 4 hours SOT with absolutely no gaming. All i do is text and use normal stuff like twitter and instagram.
My device at the same, up to 5 SOT
Do you think battery problems on this device?
Edit: 8-10 hours standby -> %10 battery drain...
Location - Battery saving(always)
Brightness - Auto(always)
Wifi - off(idle off- Scanning always available <-OFF)
Network - 2G(idle)
Bloatware - all disabled
Moto Apps - Only Moto Display -ON-
Facebook / Twitter - I don't use!
I typically see 1% battery drain for every hour in stand by and 10% for every hour of screen on time. After 24 hours with 2 hrs SOT, I'll be around 55%. I don't use WiFi or GPS very often.
richiec64 said:
So I've had my phone a little over a month now and i never got amazing battery life, but compared to other phones it was solid. However, i see people with 6-7 hours of screen on time, when i struggle to squeeze 4 out of my phone. Typically i get down to about 10% with 17 hours total and 3.5 hours of screen on time. Also my phone usually turns off at 5-10% randomly, is this normal? Lastly, every so often if i let the battery run down until it turns off (8% or so) i get a screen that shows the battery sign with an exclamation mark on the inside. Is my phone defective or are peoples battery stats a matter of difference in usage.
Click to expand...
Click to collapse
JasonJoel said:
SOT heavily depends on use and screen brightness.
I always get 6-7, auto brightness, no gaming.
Click to expand...
Click to collapse
cascade128 said:
Do you think battery problems on this device?
Edit: 8-10 hours standby -> %10 battery drain...
Location - Battery saving(always)
Brightness - Auto(always)
Wifi - off(idle off- Scanning always available <-OFF)
Network - 2G(idle)
Bloatware - all disabled
Moto Apps - Only Moto Display -ON-
Facebook / Twitter - I don't use!
Click to expand...
Click to collapse
6Binford said:
I typically see 1% battery drain for every hour in stand by and 10% for every hour of screen on time. After 24 hours with 2 hrs SOT, I'll be around 55%. I don't use WiFi or GPS very often.
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Click to collapse
Just wait for Lollipop update and the excessive battery drain will be gone. With KitKat I had around 10% or more battery drain overnight, but now I'm having at most 1%-2% with the same synced settings, so it was a huge improve, believe me.
Besides this, try to disable Moto Actions (except camera wrist), keep those sensors awake all the time drain a lot of battery. The exclamation sign inside the battery should be present in around 5% battery left.
Also, as far as I know, Turbo will be updated directly to 5.1, so it would be better, but hope that Verizon crap-ware doesn’t ruin the update.
Just curious, if having Motion Sense on hurts battery life much? I only have the minimal of Motion Sense enabled, just Reach to check phone only. Skip songs off. Silence interruptions off. Always on display off.
And my Display settings I have Reach to check phone On. Tap to check phone On. Lift to check phone On.
Do these settings effect battery much, or not at all? What do you recommend for best battery life for Motion Sense and Display settings?
I have my settings exactly like you do actually. I can only assume they are helping battery life vs having all the motion sense settings on. I have no need for the others for my usage currently though that may change.
It's a 10% drain overnight sleeping with literally nothing swinging above it. For me that's a huge drain that I will not put up with. I disabled everything just like you and it was the same, doesn't matterwhat's feature your enable or disable, if you have it enabled it rains cuz it's constantly trying to send motion above it. At least that's what my testing showed.
I have it disabled altogether because that function is literally useless. When you can enable "turn screen on pick up" or "turn screen on with a tap"
Sent from my Pixel 4 XL using Tapatalk
I turned off Motion Sense couple days ago, but in my battery use, showing which things used the most, #2 on the list was Ambient Display. But with Motion Sense off, what's using Ambient Display?
I did turn AoD back on, so is it the always on display draining?
I was having great battery life yesterday, at end of day, bedtime I had like 5h 30m SoT with like 33% battery life left. I didn't charge overnight, and this morning checked the phone and it was at 19%. I was like, how the heck did the phone lose like 10% overnight, when not in use, but unplugged. It's on WiFi. Does Always on Display kill it?
I initially used it but eventually just turned it off. I have a couple of trusted devices set up (my watch and my car) so my phone is never locked when I'm near it. Also, since the screen touch to activate works so well, I can tap the screen to check notifications so having Soli turn on the screen before I can touch it, but still needing to reach for it, it just didn't seem to be worth feeding it electrons just for that. Perhaps when they work out some more useful functions, like volume or muting, I'll turn it back on.
My battery life is like Zorachus (though I keep it on a charging stand overnight so I don't care about idle drain). I did this in the first couple of days of owning the phone before battery usage stabilized so I don't really know if it drains it significantly or not. Maybe I'll turn it on one day just to see.
With motion sense off but always on display on throughout the day yesterday and evening I was getting really good battery life I think I was just concerned cuz I left the phone at like 35% last night before bed I purposely didn't plug it in just to see and when I wake up and it had like 20% battery life so it went down over 10% while I was sleeping and I have everything pretty much turned off no location finder no push notifications I've got it stripped down pretty good on Wi-Fi so not sure what happened?
Mine dropped that much overnight Saturday but that was also the weekend I went 46 hours between charges and got 5-something hours of screen time (the only thing shut off was Soli and NFC (WiFi, BT, data, Location services, AOD, etc. were all on). Idle drain of ~1-1.5% per hour doesn't sound that bad to me.
hmmmm after reading this i turned motion sense totally off and AOD back on and will see the battery life over the next two days and compare.
pixelsquish said:
hmmmm after reading this i turned motion sense totally off and AOD back on and will see the battery life over the next two days and compare.
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Click to collapse
Seems Motion Sense is a drainer, but AoD not so much. So for me, using my Pixel 4 XL with no Motion Sense, my battery life lately;
My battery life on my 4 XL seems to be all over the board, but it's never less than 5.5h SoT, and that's at the 10% mark when battery saver kicks in. Some days it seems I can get close to 7.5h SoT if run down to 1%. So I'd say I get on average 6.5h+ SoT.
I get better battery life at work, where my mobile signal is perfect connection, never searching. So that helps keep battery drain down.
- 90hz forced on always ( too nice and smooth not to keep on )
- Motion Sense off
- AoD on ( always on display )
- Location off always. Anything GPS related off
- Lift to reach on
- Tap display to turn on
- Display set to auto brightness always
I've always had it on, so, not sure what the difference is. But, my phone lasts from 6am and still has 30+ percent of battery left at 10pm. Definitely getting a full 20-24+ hours.
I have Soli on full, AOD, smooth display forced on, location on full, lift to wake off, tap to wake on, auto brightness on.
Does anybody use their Pixels with AOD off and Motion Sense on..? How's that affecting the battery..?
And, with that setup, when you reach for you phone, does it turn on the screen when the radar is triggered?
Yes that's the setup I have with only reach to wake turned on. Yes, it does wake up the screen and start looking for your face. Need to check the idle drain overnight.
Cant really say destroyed. It is a little less for me but definitely useable if one really likes the features. And thats coming from a small pixel 4.
I currently own an original galaxy watch and love the 4 days of battery life . Don't like the random disconnects though. Thinking about buying the 45 mm bluetooth version of the gw3 but not excited about the battery life. How is the battery life now with the latest updates that promised better battery life?
My Galaxy Watch 3 is only a couple of months old, but so far a 17 hour day usually leaves me with about 70% when I put it on the charger at night.
With relatively heavy use, agree that battery life good. After 24 hours, still between 55-60%
GW3 Battery seems good. Definately better than my prior Galaxy Watch!
I use AOD, with a brightness hack, and constant heart rate monitoring. I'd say it's good for about a day and a half. Only minor complaint is it doesn't turn the display back on when you wake up, you have do that yourself (and sometimes a few times until it recognizes you're really up and active).
Workout tracking is a HUGE battery drain. Again with constant monitoring and screen set to not sleep, a 1-hr walk with heart rate and GPS will burn about 20% of the battery!
If it matters, it charges quite slowly. About 2.5 hours from 0 to 100%. So heavy use, and maybe an hour-long workout, and you're going to have to put it on the charger for about 2 hours every day.
So it seems that battery life is around 2 to 2.5 days then with normal use. About 1.5 to 1 day shorter than the og gw. Hmmm something to think about. I am also looking at the fitbit sense for the 6+ days battery life. Its a toss up.
As per my opinion battery life for Watch 3 is not good. Earlier i was using Huawei Watch GT2e, battery life was 9-10 days.
I do not use workout detection (or any workout function ) and a simple watch-face (weather, dual time, date and battery %) it takes around 3 days on battery! pretty good.
At the beginning I used to use complex watch-faces and the drain was huge like one day and half.
jhcomputerguy said:
I currently own an original galaxy watch and love the 4 days of battery life . Don't like the random disconnects though. Thinking about buying the 45 mm bluetooth version of the gw3 but not excited about the battery life. How is the battery life now with the latest updates that promised better battery life?
Click to expand...
Click to collapse
Wanna buy mine? I had a few financial problems and need the money
My honest advice....if you're going to take advantage of all the features a smartwatch offers, then expect to live with charging every day or every other day. If not, there's really not much reason to spend the money.
If that's a deal-breaker, or if you don't want to use all the features, then maybe get yourself a nice non-smartwatch. Or get a fitbit that just tracks sleep and heart rate. Don't waste your money and convenience on a smartwatch just for telling the time. Or look into the Oura ring which is a pretty nice overall health tracker that gets about 5-6 days of battery life.
kodiak799 said:
I use AOD, with a brightness hack, and constant heart rate monitoring. I'd say it's good for about a day and a half. Only minor complaint is it doesn't turn the display back on when you wake up, you have do that yourself (and sometimes a few times until it recognizes you're really up and active).
Workout tracking is a HUGE battery drain. Again with constant monitoring and screen set to not sleep, a 1-hr walk with heart rate and GPS will burn about 20% of the battery!
If it matters, it charges quite slowly. About 2.5 hours from 0 to 100%. So heavy use, and maybe an hour-long workout, and you're going to have to put it on the charger for about 2 hours every day.
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Click to collapse
What settings are you using?
I use AOD with stock watchface and brightness set to 6.
HR tracking set to every 10 minute.
Auto workout detection disabled.
The Watch barely make it through the day with 20% battery left when i put it back in the charger
Am i the only one getting such battery life? (maybe battery issue?)
My experience is different. If I do any exercising and have it continually monitor heart rate, speed, lap times etc, and its typically for 1 to 2 hours, then the watch doesn't make it through the day.
ekerbuddyeker said:
My experience is different. If I do any exercising and have it continually monitor heart rate, speed, lap times etc, and its typically for 1 to 2 hours, then the watch doesn't make it through the day.
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Click to collapse
How to you turn those features off? All I really want is heart rate.
I use
liorm0505 said:
What settings are you using?
I use AOD with stock watchface and brightness set to 6.
HR tracking set to every 10 minute.
Auto workout detection disabled.
The Watch barely make it through the day with 20% battery left when i put it back in the charger
Am i the only one getting such battery life? (maybe battery issue?)
Click to expand...
Click to collapse
I have continuous heart rate monitoring. I have notifications (from phone) disabled. AOD with brightness set to 4 and no auto brightness. Wake gestures and Bixby turned off. Sleep monitoring enabled.
And with all that, and one of my brighter more battery eating watchfaces (with a dim mode hack)....I was at 25% after 22 hours. So had I exercised for an hour with GPS and continuous monitoring, I would have had @12% left and just made it 24 hours, except in reality it would be on the charger for 2 of those hours. Other watchfaces I have fair a little better.
Doing an experiment between continuous HR monitoring and every 10 minutes. I don't think it's more than 10% additional battery drain over the entire day.
kodiak799 said:
I use
I have continuous heart rate monitoring. I have notifications (from phone) disabled. AOD with brightness set to 4 and no auto brightness. Wake gestures and Bixby turned off. Sleep monitoring enabled.
And with all that, and one of my brighter more battery eating watchfaces (with a dim mode hack)....I was at 25% after 22 hours. So had I exercised for an hour with GPS and continuous monitoring, I would have had @12% left and just made it 24 hours, except in reality it would be on the charger for 2 of those hours. Other watchfaces I have fair a little better.
Doing an experiment between continuous HR monitoring and every 10 minutes. I don't think it's more than 10% additional battery drain over the entire day.
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Click to collapse
Hi, what is the Dim Mode hack you mention? Thanks
wilx said:
Hi, what is the Dim Mode hack you mention? Thanks
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I posted a thread way back, it's probably one of the older threads on this GW3 forum.
You need to be using Watch Maker, and also Tasker. Basically, there's a glitch that tricks the display into being brighter. It probably costs about 1-1.5% battery life per hour. I've found brightness set at 4 with autobrightness off gives a very consistent brightness between active and dim modes. A lot of my favorite watch faces were otherwise barely readable in dim mode.
I have it with Facer app dimmed mode and not black screen, watch always-on is enabled, brightness set to 4, heart sensor is set to scan continuously, stays up to 20 hours which is more than enough, to be honest in my opinion...
I'm very unimpressed with battery life on the watch. Any day i excerise with continuous monitoring (for 2 hours), it's likely to run out long before end of the day. Occasionally I get a battery warning while running, and that's the worst. It's meant to be a health tracking device. Battery is too small IMHO
ekerbuddyeker said:
I'm very unimpressed with battery life on the watch. Any day i excerise with continuous monitoring (for 2 hours), it's likely to run out long before end of the day. Occasionally I get a battery warning while running, and that's the worst. It's meant to be a health tracking device. Battery is too small IMHO
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Click to collapse
I'd say get in touch with Samsung service center, 2 hours most likely your watch battery has manufactury defect, my watch has the heart sensor set to continuous auto-detect work out with wifi and GPS turned on and besides the other things I said, stays solid 18-20 hours, Samsung Health App syncs heart rate and shows me everything, it shows me even my sleep...
I do not see this anywhere, there are two different size watches and each has a different size battery. The 41 will not last as long as the 44.