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Battery life?

Hi,
I have the s2 classic and I love it. I have read on CNET that they were able to get nearly 3 days of battery life before charging. I can't get 24hrs of usage before charging. I have changed the brightness to 5 (the screen does shut off and is not on the always on mode), I shut off wifi and NFC . I am not using it all that much, what is everyone else getting on average? I just want to know if I might have a lemon.
Thanks
APT_ART

Hey @APT-ART , You can't try to turn off the automatic heart sensor for longer work on battery. Also the black background (pure black, so pixel are not lighted at all for that part of the face) will help to improve it.
For me it depends on how many notifications there are during the day, what applications I am using and how I charged it last time (I recommend to clean both the back part of the watch and the wireless charger as well). Also for some faces the brightness level of 2 or 3 should be enough to use it as a normal watch WiFi on but NFC off, also the automatic heart sensor turned on but less regular setting.
The battery stands for me for about 30 - 40 hours. But for the first two times I've got only about 16-18. Just let it discharged to 0%, then charge it to 100% without turning on. Good luck!

I keep my brightness at 3, keep always on watch face turned on, tilt to wake off, heart rate off, wifi on, nfc off, S voice watch face listening off, get probably 50 notifications per day and after a 16 to 18 hour day have about 40 to 50% battery left.
I think S Voice watch face listening, higher brightness, and tilt to wake (especially at a higher brightness) does the most damage to battery life.

KubixRevan said:
Hey @APT-ART , You can't try to turn off the automatic heart sensor for longer work on battery. Also the black background (pure black, so pixel are not lighted at all for that part of the face) will help to improve it.
For me it depends on how many notifications there are during the day, what applications I am using and how I charged it last time (I recommend to clean both the back part of the watch and the wireless charger as well). Also for some faces the brightness level of 2 or 3 should be enough to use it as a normal watch WiFi on but NFC off, also the automatic heart sensor turned on but less regular setting.
The battery stands for me for about 30 - 40 hours. But for the first two times I've got only about 16-18. Just let it discharged to 0%, then charge it to 100% without turning on. Good luck!
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Really good tip, I am going to let the watch discharge to 0% and see what happens. thanks! :good:

With very light usage I can easily get 3+ days. I turned off nfc and WiFi. I left on the heart rate scanning. I use it as a stand alone watch at work since I can't use my phone. I have the brightness at 3 and ambient display off / tilt to wake on. Not ideal usage for some, but it's a good setup for me.
Sent from my A0001 using Tapatalk

I'm assuming everyone here has the non 4g version and that's why you guys are getting pretty good battery life. Got my S2 yesterday with 4g and fully charged overnight. Took off charger and about 8 hours later the S2 is at 38%. Not happy but going to try that discharge tip. To see if it helps. Also may have to tweak some other settings. I had the Gear S 4g and it didn't drain that much. I can usually get a days worth out of it.

you need several cycles to really know what kind of battery life you can expect; one days worth wont tell you a thing

How do you change the heart sensor setting?
Sent from my Nexus 6 using Tapatalk

phxtravis said:
How do you change the heart sensor setting?
Sent from my Nexus 6 using Tapatalk
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You can change it by going into the s health settings on the watch. Options for auto heart rate are frequent, moderate, or off. These settings are separate from if you actually go in and start and exercise. I have my auto turned off (to conserve battery) but when I go in and actually start an exercise session on the watch, it will monitor heart rate. The auto heartrate is just for random monitoring throughout the day....having it set to off will not impact monitoring when you start an exercise.

poor battery life?

Hi,
I received my gear S2 classic yesterday but I don't seem to be getting the battery life of 2 days. I took it off charge this morning at 11:30 am and it's now 12 noon and it's down to 89%. Is this normal? I've turned off the auto heart rate monitor and NFC and Wifi. It's constantly connected to my note 4 and the brightness is set to 5.
I've had a fair few notifications and haven't really used apps on it today so far but seems to be draining quicker than what I was expecting, just wondering if this is normal or not? I understand it's a small battery but when it's supposed to get 2 days and it doesn't seem like I'd get one day out of it if I was to take it off charge early in the morning like at 8 AM for example.

In 30 min it drained 11%? Seems like a lot. Restart it perhaps? I have wifi off, s voie off, and screen brightness set to 5 as well and it lasts 2+ days. I'd give a couple more days, if it doesn't improve then I would exchange it.

nightf0x said:
In 30 min it drained 11%? Seems like a lot. Restart it perhaps? I have wifi off, s voie off, and screen brightness set to 5 as well and it lasts 2+ days. I'd give a couple more days, if it doesn't improve then I would exchange it.
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Think it's okay (ish) been off charge now for about 11 and a half hours and it's at 46% though this still is only barely a day of battery life not 2. Should be able to live with it though I normally put my phone on charge at night when I go bed anyway regardless of the charge I have left and I do the same with the S2. Speaking of phone is there anything I can do with it's battery life? Having bluetooth on 24/7 really takes a hit on my battery life on my note 4. Is there anyway I could put it into some kinda low powered bluetooth mode so maybe it's not quite as fast but still some kind of connection?

mikesaa309 said:
Think it's okay (ish) been off charge now for about 11 and a half hours and it's at 46% though this still is only barely a day of battery life not 2. Should be able to live with it though I normally put my phone on charge at night when I go bed anyway regardless of the charge I have left and I do the same with the S2. Speaking of phone is there anything I can do with it's battery life? Having bluetooth on 24/7 really takes a hit on my battery life on my note 4. Is there anyway I could put it into some kinda low powered bluetooth mode so maybe it's not quite as fast but still some kind of connection?
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I had pretty bad battery life with watch connected too. It turned out it was a misbehaving app with bluetooth, GasBuddy in mycase. Uninstalled it and battery life went back to normal. I suspect something similar may be happening in your case.
Sent from my SM-T320 using Tapatalk

nightf0x said:
I had pretty bad battery life with watch connected too. It turned out it was a misbehaving app with bluetooth, GasBuddy in mycase. Uninstalled it and battery life went back to normal. I suspect something similar may be happening in your case.
Sent from my SM-T320 using Tapatalk
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+1 for the misbehaving app as the likely cause. For comparison: My Classic goes on at 9am and off around 9pm with about 60% left, consistently. Connected with bt...Wifi off and max brightness all day.

Battery App Misbehavior
sefrcoko said:
+1 for the misbehaving app as the likely cause. For comparison: My Classic goes on at 9am and off around 9pm with about 60% left, consistently. Connected with bt...Wifi off and max brightness all day.
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How did you determine the app causing issues? Do you have the clock always on or gestures on? it seems i am draining awfull fast too. Took off charger at 7am and now at 10 i am at 85% is this normal?

mapobean said:
How did you determine the app causing issues? Do you have the clock always on or gestures on? it seems i am draining awfull fast too. Took off charger at 7am and now at 10 i am at 85% is this normal?
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That drain seems a little fast to me but not too bad compared to the experience of others posted here.
Usually you'll notice the drain soon after installing troublesome apps, so the offender is likely one of the last few you installed. To fix this I just uninstall the last few apps I downloaded and test from there. If the battery issue is still not resolved after a while of usage, then I uninstall the ones before it. I don't know of any other way to test on the Gear S2 like we do on android phones (e.g. with bbs, wakelock detector, etc.).
The battery life I mentioned for my Classic is with gesture mide turned on, and always-on mode turned off.

Irregular Battery Drain

I purchased a GS3 3 days back and using it with my OnePlus 5. Although everything is fine - except for the meagre selection of apps in Tizen store :crying:
I am facing an issue with irregular battery drain. When the watch is in standalone mode and Airplane mode on, the battery level drops at a steady level till 50% - after that the drop is very very fast - maybe 5% every 30 mins even though i am not wearing it. I went to sleep with 23% t 11PM and at 6AM the watch is dead. AOD is off as well. What might be the issue here? Please advice

liv2drive said:
I purchased a GS3 3 days back and using it with my OnePlus 5. Although everything is fine - except for the meagre selection of apps in Tizen store :crying:
I am facing an issue with irregular battery drain. When the watch is in standalone mode and Airplane mode on, the battery level drops at a steady level till 50% - after that the drop is very very fast - maybe 5% every 30 mins even though i am not wearing it. I went to sleep with 23% t 11PM and at 6AM the watch is dead. AOD is off as well. What might be the issue here? Please advice
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Bump

Question Overnight battery drain issue

I am totally in love with my GW4 (Classic 46mm Model) as it's my first smartwatch but there is still one thing that bothers me, the unreasonable battery drain overnight. I charged up my watch last night, put the watch on my desk, came back in the morning and saw about 10% battery drain in 8 hours! That's insane considering the fact that I've disabled everything and even enabled battery saver, I thought after all these years I can finally get a full fledged Wear OS smartwatch and be happy with the battery but Wear OS is still the same OS as it was.

I've got the same issue. I thought it was the sleep tracking but I was wrong

And the funny fact is that the battery life is reasonably good when you actually using the watch, but as soon as you put it away it starts to drink juice weirdly, looks like there is no deep sleep kicking in no matter what, even disabling everything and enabling airplane mode.

UnknownWolf said:
I am totally in love with my GW4 as it's my first smartwatch but there is still one thing that bothers me, the unreasonable battery drain overnight. I charged up my watch last night, put the watch on my desk, came back in the morning and saw about 10% battery drain in 8 hours! That's insane considering the fact that I've disabled everything and even enabled battery saver, I thought after all these years I can finally get a full fledged Wear OS smartwatch and be happy with the battery but Wear OS is still the same OS as it was.
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Which version/size do you have? How many times have you fully charged the watch? I have Classic 46mm. My battery drains 4 -6 % during the night. I have watch on my wrist when I sleep. I always put watch into bedtime mode before I go to bed. I don't disable anything or put on power saving mode. I think the bedtime mode simply turns off notifications and stops watch face from automatically turning on.

fliptwister said:
Which version/size do you have? How many times have you fully charged the watch? I have Classic 46mm. My battery drains 4 -6 % during the night. I have watch on my wrist when I sleep. I always put watch into bedtime mode before I go to bed. I don't disable anything or put on power saving mode. I think the bedtime mode simply turns off notifications and stops watch face from automatically turning on.
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Oh sorry for not mentioning it, It's the same as yours classic 46mm. I have the watch for almost 1 week now but I always charge it whenever it gets to 50% so it's a half cycle charge. Do you think I should let it fully discharged and recharge it for a full cycle?

I have the non classic 44mm LTE and I have always used bedtime mode and I've tried nothing all the way to disabling everything and enabling battery saver and still lose quite a bit at night

UnknownWolf said:
Oh sorry for not mentioning it, It's the same as yours classic 46mm. I have the watch for almost 1 week now but I always charge it whenever it gets to 50% so it's a half cycle charge. Do you think I should let it fully discharged and recharge it for a full cycle?
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It seems to me that the battery lasted longer after doing some full cycle charges but I could be wrong. I definitely have seen improvement in battery life since the first few days I had watch. Not sure what it is.

spart0n said:
I've got the same issue. I thought it was the sleep tracking but I was wrong
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How do you know it was not sleep tracking?
For me, I went to bed yesterday with almost 100% battery. The overnight drain was 15%, flight mode enabled, good night mode enabled and spO2 while sleeping on.
My watch is 40mm, BT modell.
Tonight I will try only the automatic good night mode.
What about Bluetooth when my phone is in airplane mode? Will it consume more battery searching for the device? My wifi will also be disabled in the night...

I am seeing this same thing
13% drain with airplane mode, good night mode, and battery saver modes on.
13-14% drain with battery saver mode and good night mode on.
This is for an 8 hour window.
Using the watch during the day, the battery does seem to last longer and I don't see the drain, even when using it to track workouts and such.

Last night my battery used 11%. I'm not sure what the difference is. I know I have been in the 4-6% range in the past but I always do not pay attention. Possibly related to how fully charged the watch is. Why do we think 10% is bad? I did a search on-line and I have to say that 10% seems very good compared to some other watches. The reality for me as that I'm typically getting 2 days plus on a charge unless I'm heavy on GPS. Currently I'm at 50% and I charged the watch 1 day and 9 hours ago. I came from a GW1 which had significantly more battery time but I'm still very happy with the GW4.

My drain is 20% overnight - despite watch being in bedtime mode.

UnknownWolf said:
I am totally in love with my GW4 (Classic 46mm Model) as it's my first smartwatch but there is still one thing that bothers me, the unreasonable battery drain overnight. I charged up my watch last night, put the watch on my desk, came back in the morning and saw about 10% battery drain in 8 hours! That's insane considering the fact that I've disabled everything and even enabled battery saver, I thought after all these years I can finally get a full fledged Wear OS smartwatch and be happy with the battery but Wear OS is still the same OS as it was.
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If your watch is on your desk and turned on, it's constantly searching for your wrist. If you are not wearing it, turn it off.

I have the same issue about battery drain.
I lose between 15-20% each night with everything off (no SpO2, no snoring, etc)
I have the LTE 46 classic model
But based on people and comments I'm guessing the issue comes because I'm not using a Samsung phone and bed time is not synced with the watch and is still "online" all the night

Geez I thought my 3-5 percent drain was horrible. I have the 44mm Bluetooth only model. The first night it drained horrible but I had every sensor on. I noticed I got much better battery after disabling location. I've had mine paired since 7am this morning (it's now 3pm) responding to texts, wifi on and using Spotify on it at 75 percent brightness and it's at 79 percent now. Maybe I got lucky or something? The only sensors I have are the step counter as well as heart rate when resting more than 10 minutes and I never like to use battery saver mode on mine

Second night and I got about 20% drain overnight with everything turned on. I got a similar battery consumption like adj998. Spotify on first place.
I will try do disable GPS tonight and see if anything changes, but I guess it's a normal behaviour. One thing I could try is to turn the spO2 sensor off.

Read somewhere that unlocked ADB is the culprit. So I have unlocked it.
Let me watch how it helps my 20% overnight drain.

sjgoel said:
Read somewhere that unlocked ADB is the culprit. So I have unlocked it.
Let me watch how it helps my 20% overnight drain.
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Interesting. I'm betting that this drain is related to certain apps as well. When I did my post yesterday about the 11% drain the previous night I noticed the Altimeter app was listed at 4.5%. I immediately uninstalled this app. I had used it once the previous day and apparently it was still using battery. Results: much battery time last night. I would say 3%. In fact, when I looked earlier this morning I still had 41% battery. Yesterday morning I was at 50%. 25 hours and 9% battery used. I have not been very active these last couple days (long days at work). Still putting in about 5,000 steps a day. I have notifications on (gmail, texts, meesenger), use bedtime mode, spO2 sensor off, and do not have watch always on.

fliptwister said:
Interesting. I'm betting that this drain is related to certain apps as well. When I did my post yesterday about the 11% drain the previous night I noticed the Altimeter app was listed at 4.5%. I immediately uninstalled this app. I had used it once the previous day and apparently it was still using battery. Results: much battery time last night. I would say 3%. In fact, when I looked earlier this morning I still had 41% battery. Yesterday morning I was at 50%. 25 hours and 9% battery used. I have not been very active these last couple days (long days at work). Still putting in about 5,000 steps a day. I have notifications on (gmail, texts, meesenger), use bedtime mode, spO2 sensor off, and do not have watch always on. View attachment 5405809
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Read on Reddit that altimeter drain was a known issue, in earlier models as well.

With people that are having excessive battery drain on their watch: are there any apps which are listed in Wear app -> Watch settings -> Battery that seem like a high percent of battery usage?

fliptwister said:
With people that are having excessive battery drain on their watch: are there any apps which are listed in Wear app -> Watch settings -> Battery that seem like a high percent of battery usage?
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Actually yeah, for me it's Spotify. I installed it and connected it to my account but did not use it...

Question Battery Problems

So far I have had no battery problems on my Galaxy Watch 4 BT.
Heart rate monitor continuously, display activated when the arm is moved, sleep mode from 10:00 p.m. to 6:00 a.m., medium-dark watchface from WatchMaker.
The battery is charged to 100% in the morning. During the day the battery is at 55-65% in the late evening. Then charging again briefly (to 75-80%) for a few minutes, until i go to bed.
Then sleep tracking takes place.
At the morning after getting up, I charged the watch again to 100%.
That was my routine at the last weeks.
On Sunday morning I had not much time, so I set the watch at 88%.
When i went to sleep at 11:00 PM, the watch still had 50%.
And here's the Problem:
The sleep tracking ends at 2:51 AM - the watch has gone off: the battery is empty.
Last weeks my Watch shows 2 d 14 h at 100%.
Today: 1 d 15 h.
This battery lost 1 day!
At this moment the battery is at 65 %...
WTF... Why?
What happened?
Everything was as always ...
Has someone an idea?

Something similar is hapening with me, I have watch 4 classic. I was able to push one day out of it, with an hour or so of exercise tracking at around 6PM and now all of a sudden from the past 3-4 days, I get battery low warning by the time I am done with my exercies, so basically I have to charge it for 10-15 minutes to get thru the rest of the evening and night. Forget sleep tracking, the battery is going down so fast it almost feels like if i glanced it at 1pm its at 70% and when I glance it at 1:05PM its at 65%. Extremely strange I hope there was not some background firmware update that happened.

My current endurance of Galaxy Watch 4 44mm is around 60-65h! Absolutely sufficient. Lots of notifications, step measurement ....
I turn on the display by tapping the screen.
PS: Before that I had a Fossil Sport, but after a year and a half the battery went down a lot and in time even though it was still 35% of the battery so the watch does resetovary.

Same problem here. I will try:
- Uninstall 2 apps (alberto's google assistant related)
- Disable location
- Restarted the watch
Reviewed battery drain app but no information about wich one is producing the draining. I detected most of the drain at night,next workaround will be try to disable some sleep monitoring function.
Last try, fabric restore...
I will tell tou about progress