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my phone was stock and i did the ota update. it was slightly laggy and buggy so i did a factory reset and it waa running smoother. the problem was the battery drained 1% every few minutes. i tried powering off and taking out battery but it didnt help. i tried charging with phone off and that worked but it used 2% just booting up android and losee 1% every few minutes. tried multiple reboots and nothing works.
i am with you. I can see a measurable difference in the battery life after the update.
steve austin said:
i am with you. I can see a measurable difference in the battery life after the update.
Click to expand...
Click to collapse
It's pretty common for an Android phones battery to suck for a few days after an update or fresh ROM load. It's running all sorts of services in the background writing cache files, battery stat info, app data, syncing carrier data etc. It'd be down to %60 after just two hours. Pretty much every Android phone I've had I've seen this and I use to get alarmed by it. But after the 3rd or 4th day, it all seems to settle down and last as long as we'd expect. If after 5-7 days and it still sucks, then you should worry. My Note 1, LG G Pro, and now Note Edge have all done this. My Edge did this after updating to Lollipop, but now that it's all settled down, I'm usually at about %70-80 after 12hrs off the charger with light usage. It might be %40-60 after moderate use. I've had it off the charger for 24hrs (but not using the phone at all) and it was at %70.
I fixed it by charging to 15% while phone was off and doing another factory reset. Since upgrading, some apps take a long time to open. Almost as if they're close to force closing.
The battery will not charge with any charger that isn't the stock fast charging one that came with the phone. If I plug in my other charger I've used for months while at work, battery dies even when plugged in.
I kind of regret doing the ota.
christran12 said:
It's pretty common for an Android phones battery to suck for a few days after an update or fresh ROM load. It's running all sorts of services in the background writing cache files, battery stat info, app data, syncing carrier data etc. It'd be down to %60 after just two hours. Pretty much every Android phone I've had I've seen this and I use to get alarmed by it. But after the 3rd or 4th day, it all seems to settle down and last as long as we'd expect. If after 5-7 days and it still sucks, then you should worry. My Note 1, LG G Pro, and now Note Edge have all done this. My Edge did this after updating to Lollipop, but now that it's all settled down, I'm usually at about %70-80 after 12hrs off the charger with light usage. It might be %40-60 after moderate use. I've had it off the charger for 24hrs (but not using the phone at all) and it was at %70.
Click to expand...
Click to collapse
I got mine, updated, factory reset, and set it all up again on Monday 5/18. It's been 5 days. Should I be worried? It's still draining battery like nobody's business and making it almost impossible to use.
Yeah, I'd call Sammy about it if I were you. Shouldn't take that long to setting down. Mine's been running like a champ after those first few days.
christran12 said:
Yeah, I'd call Sammy about it if I were you. Shouldn't take that long to setting down. Mine's been running like a champ after those first few days.
Click to expand...
Click to collapse
They told me buy a new battery. When I got mad and demanded another rep, advised me to go back to TMO. But since then, its suddenly settled down.
You may have a buggy App that's running in the background. As with anything, try to keep it as clean as possible. Don't install every App under the sun thinking you'll need them someday. Just install what you need at that minute. You can also try to disable as many carrier bloat Apps as possible (the ones that will let you). That always seems to help me.
Running kitkat, battery recently replaced. all good for a month.
Yesterday the phone suddenly switched off , i switched it on again and the battery had jumped down about 40%.
It crashed again but then remained stable for the rest of the day.
Tonight (at 50% battery remaining) i got a sudden warning "6% battery remaining" and it crashed again, i switched on again and the battery went back to normal , around 40%, stable since.
Any ideas or is the phone on the way out ?
Did you buy an official N5 battery? It looks like a faulty battery...
This is the one i ordered
https://www.replacebase.co.uk/lg-nexus-5-d820-replacement-battery-bl-t9-original-6818/
Phone seems ok today so far, would wiping the cache be worth a try ?
Thanks for the help.
michaelopolis said:
This is the one i ordered
https://www.replacebase.co.uk/lg-nexus-5-d820-replacement-battery-bl-t9-original-6818/
Phone seems ok today so far, would wiping the cache be worth a try ?
Thanks for the help.
Click to expand...
Click to collapse
It can't do any harm but it won't help in this situation.
Try the following:
1. Let the battery go to 5% then charge your device to 100%
2. Disconnect the cable
3. Reconnect it and check if the battery level is at 100%. If not keep charging. If 100% disconnect and reboot. Then reconnect until 100%
These steps worked for some users (even if steps 1 & 2 should be enough IMHO).
Moreover you can try to remove apps or flash the factory images to check if the problem persists. If nothing works then your last attempt is to send it back to ReplaceBase.
thanks for taking the time to reply, will try your suggestions,
Just had another strange battery drain, captured it on this screenshot.
You can see battery just takes a sudden dive and recovers somewhat.
http://dl-1.va.us.xda-developers.co....png?key=ftn99xdXJLEfZ80y35-hWA&ts=1442328244
michaelopolis said:
Just had another strange battery drain, captured it on this screenshot.
You can see battery just takes a sudden dive and recovers somewhat.
http://dl-1.va.us.xda-developers.co....png?key=ftn99xdXJLEfZ80y35-hWA&ts=1442328244
Click to expand...
Click to collapse
I have just read a nice thread about massive battery drain. Check this out.
His explanations fit with your battery stats.
Thanks for that, will have a browse, but would it explain my phone suddenly dying at 50% ?
michaelopolis said:
Thanks for that, will have a browse, but would it explain my phone suddenly dying at 50% ?
Click to expand...
Click to collapse
I guess. Anyway you should follow the above steps and clean up your device by removing useless apps/features. Finally flashing factory images is sometimes a good thing to start from scratch.
Thanks again
I just tried your first suggestion, charged till 100% then disconnect, it immediately dropped to 99% so i recharged to 100%
Then disconnected and rebooted, weirdly when the phone rebooted it said the battery was now at 19% ,
Back on charge again.
Ugh.... Good luck but I would bet on a faulty battery. You'll probably have to send it back if you can use the warranty.
Did you have the same issue after receiving the new battery? Did you change several things of your setup (kernel, new apps...)?
Going from 100% to 19% can't be explained by the above thread. IMO no apps, no kernel, no software can explain this drop. Some folks say that it can also be caused by the motherboard...
Replacebase have promised to send me out a new battery , they too think its likely a dodgy battery, top customer service so far, hopefully it wont take too long to arrive.
I didnt change anything on my phone, perhaps updated some apps , its stock Kitkat,,, meanwhile Is there any way to check the health of the motherboard ? i don't like the sound of that.
michaelopolis said:
Replacebase have promised to send me out a new battery , they too think its likely a dodgy battery, top customer service so far, hopefully it wont take too long to arrive.
I didnt change anything on my phone, perhaps updated some apps , its stock Kitkat,,, meanwhile Is there any way to check the health of the motherboard ? i don't like the sound of that.
Click to expand...
Click to collapse
Without profesionnal tools we can't check this AFAIK. Don't worry about the motherboard. It was only a suggestion reported by a few users. Chances are your problem will be solved after receiving the new battery.
ok thought as much, battery charged up to 100%, rebooted and now at 60%.
Ill put back in the old battery for now and see how it behaves. thanks for you help
Hi everyone , I'm new in the community but I already found that this is one of the best phone forums online , normally you come here for help because you have a problem right ? But today I'm just here to give an advice, I notice that many people complain about the battery life on their new phones , I had the same issue with my note 5 , I saw a video on YouTube and the phone showed an estimation of battery usage of 18hours while mine only showed 9 , I immediately thought that my phone was broken or something until a month later I realized that I was getting more than 20 hours of battery usage , when we use a phone for the first 3-5 days ( specially android) we can't expect it to be fully optimized because it's still learning your behavior and phone usage, just by installing a new app your making your phone to "learn to do something new" when I got my s7 edge I didn't expected to have great battery life , I was constantly installing and removing apps , flashing Roms and trying themes and etc. Now after a month later I use my phone on a pretty standard routine , I used package disabled but it only made my phone laggy and slower , so I decided to use my phone on the stock way , I running all stock , ( only disabled the apps that come with the phone that I don't use like power point , Samsung gear and health...) and after I did this I noticed a huge bump on battery life , I went from 12 hour of usage and 4:30-5hours of SOT to 30hours of usage and 8hours of SOT
After installing a custom/stock rom make sure to drain the battery completely just once to calibrate it !
I can never get more than 6 hrs sot.. Gonna follow your tips and write back in a week or so. Thanks for sharing!
quadlt said:
I can never get more than 6 hrs sot.. Gonna follow your tips and write back in a week or so. Thanks for sharing!
Click to expand...
Click to collapse
Feel free to use package disabler, it was a lifesaver to me with my note 5 but not on the s7 , but other users report that has been really helpful other thing you could try even that the impact will be minimal is using a dark theme ,
Also don't update to the newer firmware if on Exynos. Seems to hit battery life by 25% or more as android system goes from around 5% to 15-20% battery usage.
Canadoc said:
Also don't update to the newer firmware if on Exynos. Seems to hit battery life by 25% or more as android system goes from around 5% to 15-20% battery usage.
Click to expand...
Click to collapse
with newer firmware you mean the may update?
with me it was the other thing around, in the beginning it was quite good but now, its worse. is it because of the bright sunlight or the phone getting hot because it was around 30 degrees almost?
you see...screen on time about 2 hours
most active battery drainer, android itself
Only way for me to get 4 hrs of sot i have to plug in to charge and disconnect before i get to 90 cause then it seems to thing its fully charged and battery meter resets (on battery).
ralls94 said:
Feel free to use package disabler, it was a lifesaver to me with my note 5 but not on the s7 , but other users report that has been really helpful other thing you could try even that the impact will be minimal is using a dark theme ,
Click to expand...
Click to collapse
The thing is, I have disabled half of the system already, but it just feels like it's doing even worse than before so I'm leaning back on running stock again.
Yes original firmware much better battery than the update
Sent from my SM-G935W8 using Tapatalk
quadlt said:
The thing is, I have disabled half of the system already, but it just feels like it's doing even worse than before so I'm leaning back on running stock again.
Click to expand...
Click to collapse
It didn't work either to me , this is what I think , it may sound stupid but it could be the true cause , I think when you use an app like package disabler to disable things on your phone and then you accidentally touch to open the app or setting disabled the phone will think "what's going on here" why is this disabled? And it maybe tries to access/ open the package again and again causing it to actually drain battery !, You could a cache wipe , it worked for me , I follow all guides to extend battery life using package disabler, custom rom , flashing zips to delete bloatware but none of them worked for me , instead I went all stock ,and after installing the stock rom I did a factory reset and them the cache wipe, it worked flawless to me , the phone now works like a charm , no overheating (maybe I don't feel it because I got a case ) but the point is try to find your own solution , every s7 edge it's unic, maybe a simple reebok on your phone could resolve all of your problems , and a very important thing !!!!! If you flash a rom /kernel make sure you let your battery drain completely just once to calibrate it!
I wiped nothing, stock rom latest APD1 , aod off now but on sometimes , location on, sync on 3 emails, disabled a few things with ez package disabler. Browsed the net for all the time the screen was on, WiFi on while screen of and on for atleast 2 hrs while using line messenger and used Spotify for around 30 to 40 mins. This is sot and battery usage.
I don't know how u manage to get such bad battery life, swear u guys r fu#*ING about with sh%t too much, let it settle.
pojomojo said:
I wiped nothing, stock rom latest APD1 , aod off now but on sometimes , location on, sync on 3 emails, disabled a few things with ez package disabler. Browsed the net for all the time the screen was on, WiFi on while screen of and on for atleast 2 hrs while using line messenger and used Spotify for around 30 to 40 mins. This is sot and battery usage.
I don't know how u manage to get such bad battery life, swear u guys r fu#*ING about with sh%t too much, let it settle.
Click to expand...
Click to collapse
Great battery life , you can easily achieve 3 days of battery life and 8-9 hours of SOT I guess which is great for you , just consider yourself in the 5% of people that own a phone with no battery issues , I'm happy with my 8hours of SOT and I could achieve 3days like you just by using WiFi, I use LTE because it's faster were I live but remember that there are people so disappointed with their phones because they want to get the most out of their phones and just can't, may I ask if you are amazed with your battery life or do you own other device that beats the s7 on battery ?
I am amazed, it's as good as, if not better than my previous phone the z3, which was running a custom rom and kernel.
I do consider myself lucky to have the phone run so well right out the box.
Also when I said alot r fu#&ng around with their device, I meant roughly the same as you, I didn't mean to imply their problems r not actually there. I meant as u had said, changing roms, removing apps for new, disabling apps, not letting anything settle, wont give good results in battery life.
pojomojo said:
I wiped nothing, stock rom latest APD1 , aod off now but on sometimes , location on, sync on 3 emails, disabled a few things with ez package disabler. Browsed the net for all the time the screen was on, WiFi on while screen of and on for atleast 2 hrs while using line messenger and used Spotify for around 30 to 40 mins. This is sot and battery usage.
I don't know how u manage to get such bad battery life, swear u guys r fu#*ING about with sh%t too much, let it settle.
Click to expand...
Click to collapse
Holy smoke, 5+ hrs sot in half of battery. I've been trying to get more than 6 hrs for like a month now with different roms and optimizations, not even close..
I hate to be the voice of cynicism, but we do need to stop this stuff somewhere. The original post is utter nonsense. The suggestion that phones 'learn' your behaviour just simply isn’t how kernels work. There's a very small degree of 'learning' but power management is a very reactive process based on exactly what's happening. The only thing new apps change is what processes are running, and the kernel will instantly scale to do what it 'thinks' is right. Some managers will observe processes for a bit longer and react based on that - but we're talking hours at most, NOT days.
The only credit I'd give to this idea (which seems to be all over XDA for some reason) is that the first few days people use their new shiny phone a lot more than usual, and probably also more than they’d think. They also become far more aware of battery life and will even turn on the screen just to check battery life, which will obviously accumulate batery drain - so the bit about using your phone more is certainly true. But anything about Android being some sort of AI Neural Network app learning extraveganza that learns what you do over several days is (for the most (significant) part) wrong.
Think this is just descending into another battery thread and we have one here already
http://forum.xda-developers.com/s7-edge/how-to/post-battery-life-t3321547
Thread closed
Moderation Team
hello guys, i hope you all are having a great day. so my problem is this : as soon as i got the phone, i rooted it ( obviously knox tripped but that doesn't matter to me) i flashed some customs roms, but i didn't like them because the phone was lagging and freezing randomly from time to time with the phone starting to heat in just 5 min or less and the battery life got crappy. Then i decided to flash a stock rom odin, but that didn't change a thing, since the phone still having having heating issues and extreme battery drain. oh yeah, and fast charging doesn't seem to be fast even though the fast charge activated. Help you guys
Derpenson said:
hello guys, i hope you all are having a great day. so my problem is this : as soon as i got the phone, i rooted it ( obviously knox tripped but that doesn't matter to me) i flashed some customs roms, but i didn't like them because the phone was lagging and freezing randomly from time to time with the phone starting to heat in just 5 min or less and the battery life got crappy. Then i decided to flash a stock rom odin, but that didn't change a thing, since the phone still having having heating issues and extreme battery drain. oh yeah, and fast charging doesn't seem to be fast even though the fast charge activated. Help you guys
Click to expand...
Click to collapse
Try a factory reset, and do a clean setup (don't restore any apps).. Then just give it like 2 days (the battery usually drains faster the first couple of days).. This same thing happened to me when I got the phone out of the box, rooted it as well after a week because I don't care about knox or warranty, phone was heating and battery draining so fast, I did a factory reset and a clean setup, after 2 days of discharging the phone and charging it to 100%, the battery life got better and stabilized, the heat went away. Now I easily get about 6 hours of SOT with heavy usage (gaming and stuff), and the phone barely gets hot (it only gets hot when I play pokémon Go on 4G because it uses your GPS constantly). I have the exynos version as well.
Edit: Also try Package Disabler Pro (it's paid but it's worth it), it disables all samsung bloatware and some useless services that keep running in the background, it sure helped my phone feel a lot smoother and get even better battery life.
Derpenson said:
hello guys, i hope you all are having a great day. so my problem is this : as soon as i got the phone, i rooted it ( obviously knox tripped but that doesn't matter to me) i flashed some customs roms, but i didn't like them because the phone was lagging and freezing randomly from time to time with the phone starting to heat in just 5 min or less and the battery life got crappy. Then i decided to flash a stock rom odin, but that didn't change a thing, since the phone still having having heating issues and extreme battery drain. oh yeah, and fast charging doesn't seem to be fast even though the fast charge activated. Help you guys
Click to expand...
Click to collapse
Hi mate
First thing you have to find our who is the culprit , use an app like BBS
http://forum.xda-developers.com/showthread.php?t=1179809
Let it run for a few hours and read the log to see who is running wild on your phone
Also check this threads
http://forum.xda-developers.com/galaxy-s7/how-to/standby-drain-2-8-hours-wifi-bit-4g-t3416864
http://forum.xda-developers.com/galaxy-s7/how-to/battery-life-discussion-t3316305
Silvers91 said:
Try a factory reset, and do a clean setup (don't restore any apps).. Then just give it like 2 days (the battery usually drains faster the first couple of days).. This same thing happened to me when I got the phone out of the box, rooted it as well after a week because I don't care about knox or warranty, phone was heating and battery draining so fast, I did a factory reset and a clean setup, after 2 days of discharging the phone and charging it to 100%, the battery life got better and stabilized, the heat went away. Now I easily get about 6 hours of SOT with heavy usage (gaming and stuff), and the phone barely gets hot (it only gets hot when I play pokémon Go on 4G because it uses your GPS constantly). I have the exynos version as well.
Edit: Also try Package Disabler Pro (it's paid but it's worth it), it disables all samsung bloatware and some useless services that keep running in the background, it sure helped my phone feel a lot smoother and get even better battery life.
Click to expand...
Click to collapse
the main reason why i rooted my phone is to use titanium backup to restore my whatsapp conversation and to also use Xposed. and okay, i'll leave it stock for 2 days, i won't install a thing. i'll let you know how things are going for me thanks for the reply man
MAX 404 said:
Hi mate
First thing you have to find our who is the culprit , use an app like BBS
http://forum.xda-developers.com/showthread.php?t=1179809
Let it run for a few hours and read the log to see who is running wild on your phone
Also check this threads
http://forum.xda-developers.com/galaxy-s7/how-to/standby-drain-2-8-hours-wifi-bit-4g-t3416864
http://forum.xda-developers.com/galaxy-s7/how-to/battery-life-discussion-t3316305
Click to expand...
Click to collapse
alright, i'll try that. thanks for the tips man
Derpenson said:
the main reason why i rooted my phone is to use titanium backup to restore my whatsapp conversation and to also use Xposed. and okay, i'll leave it stock for 2 days, i won't install a thing. i'll let you know how things are going for me thanks for the reply man
Click to expand...
Click to collapse
I'd avoid Titanium Backup, just start fresh.. I'm rooted mainly for adaway because I hate ads, I use xposed as well..
Let me know how it ends up
Silvers91 said:
Try a factory reset, and do a clean setup (don't restore any apps).. Then just give it like 2 days (the battery usually drains faster the first couple of days).. This same thing happened to me when I got the phone out of the box, rooted it as well after a week because I don't care about knox or warranty, phone was heating and battery draining so fast, I did a factory reset and a clean setup, after 2 days of discharging the phone and charging it to 100%, the battery life got better and stabilized, the heat went away. Now I easily get about 6 hours of SOT with heavy usage (gaming and stuff), and the phone barely gets hot (it only gets hot when I play pokémon Go on 4G because it uses your GPS constantly). I have the exynos version as well.
Edit: Also try Package Disabler Pro (it's paid but it's worth it), it disables all samsung bloatware and some useless services that keep running in the background, it sure helped my phone feel a lot smoother and get even better battery life.
Click to expand...
Click to collapse
alright man, look : today i checked my phone at 14:48 and it was at 96%, with everything off ( no sync, no background app, just fresh rom ) and now its 22:33 in my country and it's at 90%, thats good right ? or should it be much longer than this ?
Derpenson said:
alright man, look : today i checked my phone at 14:48 and it was at 96%, with everything off ( no sync, no background app, just fresh rom ) and now its 22:33 in my country and it's at 90%, thats good right ? or should it be much longer than this ?
Click to expand...
Click to collapse
Looks good to me....
Derpenson said:
alright man, look : today i checked my phone at 14:48 and it was at 96%, with everything off ( no sync, no background app, just fresh rom ) and now its 22:33 in my country and it's at 90%, thats good right ? or should it be much longer than this ?
Click to expand...
Click to collapse
Yeah man that's good.. It'll even get better with time, just be patient.. and give Package Disabler Pro a try, it really makes a difference.
Derpenson said:
alright man, look : today i checked my phone at 14:48 and it was at 96%, with everything off ( no sync, no background app, just fresh rom ) and now its 22:33 in my country and it's at 90%, thats good right ? or should it be much longer than this ?
Click to expand...
Click to collapse
You can also go to Settings > Battery > Details and then select apps that you don't always use to 'always save power'. Your stats seem good to me.
Battlehero said:
You can also go to Settings > Battery > Details and then select apps that you don't always use to 'always save power'. Your stats seem good to me.
Click to expand...
Click to collapse
how quikcly does your phone starts to get hot ? mine starts to get warm after 5-8min of usage ( wifi on ) is that okay ?it doesnt get that hot, i meann its normal if i watch videos and stuff, right ?
I heard somewhere that when you root S7 it changes the CPU's governor and it starts to lag overheat etc.(only in snapdragon model)
Sent from my SM-G800F using XDA-Developers mobile app
DarkLTU said:
I heard somewhere that when you root S7 it changes the CPU's governor and it starts to lag overheat etc. So try downloading No-Frills CPU Control and change governor to ondemand.
Click to expand...
Click to collapse
He is using the Exynos version, which does not have this problem. Only the Qualcomm root method results in the cpu governor being changed to performance, causing battery drain and heat.
Has anyone noticed their battery getting incredibly worse over time? I bought my S7 on release (non edge). And since then, I've noticed that it doesn't last no where near as long. Today, for example I started my day at 7:00am when the battery was 100%. As of 30 minutes ago, the battery reached critically low (5%). From 7am all I did was watch a few videos, facebook, snapchat and then play music. But all the above for not too long.
I've also noticed that once the phone hits the 15% battery (I know due to the notification), that within minutes the battery can be done to 10% or so, without touching it.
I'm more so tempted just to take it back, unless there's an easy fix OR it's a known issue with the current version.
Thanks!
xxshabsxx said:
Has anyone noticed their battery getting incredibly worse over time? I bought my S7 on release (non edge). And since then, I've noticed that it doesn't last no where near as long. Today, for example I started my day at 7:00am when the battery was 100%. As of 30 minutes ago, the battery reached critically low (5%). From 7am all I did was watch a few videos, facebook, snapchat and then play music. But all the above for not too long.
I've also noticed that once the phone hits the 15% battery (I know due to the notification), that within minutes the battery can be done to 10% or so, without touching it.
I'm more so tempted just to take it back, unless there's an easy fix OR it's a known issue with the current version.
Thanks!
Click to expand...
Click to collapse
I've definitely noticed this since rooting. Maybe it has something to do with that? Like a ROM you flashed or what not? I'd like some suggestions here as well.
Thanks!
musashiasano said:
I've definitely noticed this since rooting. Maybe it has something to do with that? Like a ROM you flashed or what not? I'd like some suggestions here as well.
Thanks!
Click to expand...
Click to collapse
I haven't rooted the S7, it was the first phone that I've left stock from opening.
What does the battery stats say is using the most mAh?
Facebook app is a known battery hog
Obviously over time, you'll install different things, and slowly the phone will start using more and more power running background apps
A backup and Factory reset will show if there is a hardware / battery issue, or if it's purely from stuff you've installed over time
Also clearing the caches from recovery could help
yeah ive noticed this too. My usage habits havent changed but my battery life is almost half of what it was when i just got the phone.
*Detection* said:
What does the battery stats say is using the most mAh?
Facebook app is a known battery hog
Obviously over time, you'll install different things, and slowly the phone will start using more and more power running background apps
A backup and Factory reset will show if there is a hardware / battery issue, or if it's purely from stuff you've installed over time
Also clearing the caches from recovery could help
Click to expand...
Click to collapse
Cache has been cleared from recovery, and I don't generally install many apps so since I've bought the phone the apps have stayed the same.
Android system is always on top. Unless of course I spend hours on Facebook.
Might have to factory reset. I've used my phone with the same apps and time since I've bought it, and I'm finding I'm charging it 3x as much.
I think it's a root issue - deep sleep.
After S6 Edge Plus, when you root a samsung phone, it won't go in deep sleep. I believe there's a fix for that.
Have you checked the battery usage stats? It gives you the breakdown on what apps are eating up the battery.
I have had my S7 for about a month and battery is about the same.
Just to update this thread for those that may have a similar issue...the other day I couldn't live with the battery life the way it was. The phone used 50% in several hours where I barely used it.
Decided to completely re-flash with stock (was stock before) as opposed to simply wiping all data. A week in, and the phone's battery life is back to the way it was. I went to bed when it was on 100% (as a test) and woke up 7 hours later with the phone on 94%, with wifi, location and bluetooth on.
Not sure what had caused it to use so much battery previously, but it's back to what it should be and that's all that matters.
hi with my s7 exynos i do 3h screen. i think there is a problem. i bought my s7 one week ago. can anyone help me?
Rooting and installing custom kernels when done right should greatly increase the battery life of your device. This is a well known guide here on XDA for improving battery life for our devices.
That being said, Lithium Ion Batteries hold less charge the more cycles they are put through, its a given fact but as you said your device is relatively new and therefore should not be experiencing this kind of problem. The way I see this is there are 3 possibilities which may be causing the said problem...
1) You have rooted the device and done some modification/s. ( which you haven't done )
2) Your battery is being drained by a service ( Like Oculus or VR ) in fact a number of reddit users complained their S7 was overheating and battery was draining really fast for some reason. Check This page out, It might help you.
3) Battery Defect, you must've gotten a "bad" model, if you haven't tripped KNOX you could try bringing your phone to Samsung and see if they would fix or replace it.
Good luck
I think this has to due to them samsung updates. As far as i know samsung been always doing things like this where they made the OS slow as hell after a while so you gonna get a upgrade sooner but a battery should last 2 years minimal without degrading.
---------- Post added at 03:36 AM ---------- Previous post was at 03:34 AM ----------
petmike2 said:
hi with my s7 exynos i do 3h screen. i think there is a problem. i bought my s7 one week ago. can anyone help me?
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i get like 5 hours screen on time and bout 1 day standby time but i have most bloatware disabled with the package disabler. But if i was you i would contact samsung.
This happens with Samsung updates on every Galaxy phone. It's like a curse. It's unavoidable.
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May i ask if the people with these problems use the fast charge? I hearing many bad things bout this so i switched it off and must say the normal charge isn't that slow and if it can keep the battery good for longer then we all should use this.
I turned fast charge off about a week after I got the phone, was making the phone and charger pretty hot for the sake of about 5-10 mins quicker charge
Pointless really, unless you are desperate, only have a few mins spare and need as much power as possible in that short time, and if that's the case, enable it for that one time
Restrict background data on all but the most important apps (phone, text, email), dave power all but the most important apps. Battery life is fine
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