12-22-2016 04:30 PM
29 12
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  1. AC Question's Avatar
    So I just got my galaxy s7 today from sprint and after using it for an hour I noticed that the battery drains pretty fast. I was given the phone at around 45% and it was at 7% after using it for an hour and 30 minutes. This is not what I expected at all. A 3000 mAh battery should last me more than 5 hours at the very least with casual usage such as browsing the internet let alone what I was doing was just browsing through my device's settings as well as uninstalling all the pre-installed junk that came with my phone. I've seen many reviews on youtube and online saying that this device's battery life should last you more than 10 hours, possible more than an entire day with light usage. This is a completely new phone so i'm just confused as to why the battery life is so low. Any help would be appreciated because right now I think I might have to return the phone.
    11-25-2016 10:33 PM
  2. Tim1954's Avatar
    You should fully charge the battery first, then it takes a couple of cycles to settle in as it were. With a new phone, they are very busy with synch this and that and checking stuff online (that's just the device and apps, not counting your activities).. Give the thing a chance...
    B. Diddy likes this.
    11-25-2016 11:43 PM
  3. B. Diddy's Avatar
    Welcome to Android Central! I agree with Tim1954. App installation can also use a fair amount of power when done in big batches, and this is one of the things users tend to do a lot of when they first get a phone.

    If you still notice the battery life being poor after charging up to 100% and using it normally for a few cycles, then show us some battery stats. Charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:

    1. The main Settings>Battery screen.
    2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
    3. The Screen category (to see total Screen On time).
    4. The Cell Standby category, if present (to see Time Without Signal).


    http://forums.androidcentral.com/gen...d-central.html


    You might have to install a 3rd party battery monitor, like GSam Battery Monitor, to get the Cell Signal Strength graph.
    11-26-2016 12:21 AM
  4. 12of12's Avatar
    So I just got my galaxy s7 today from sprint and after using it for an hour I noticed that the battery drains pretty fast. I was given the phone at around 45% and it was at 7% after using it for an hour and 30 minutes. This is not what I expected at all. A 3000 mAh battery should last me more than 5 hours at the very least with casual usage such as browsing the internet let alone what I was doing was just browsing through my device's settings as well as uninstalling all the pre-installed junk that came with my phone. I've seen many reviews on youtube and online saying that this device's battery life should last you more than 10 hours, possible more than an entire day with light usage. This is a completely new phone so i'm just confused as to why the battery life is so low. Any help would be appreciated

    I've heard that since this is a new phone, it is going through sync and app installation and what not. I've also been told that I need to charge the phone completely and use it normally for a few cycles (using it to 20% ish and then charging it completely again). Dod you guys experience battery life issues when you guys got your new phone?
    11-26-2016 12:03 PM
  5. Rukbat's Avatar
    Charge it fully (100% plus another 30 minutes - due to the way we measure state of charge, the moment the indicator says 100%, the battery is at about 97%-98% charged), then discharge it to around 50%, then charge it again - 3 times.

    Try to never allow it to fall below 40%. ("20% ish" is going to be nice for the battery manufacturers - you'll be buying a lot of batteries - but lithium batteries are not deep-discharge devices, and deep-discharging them will ruin them.) 50% is the normal recharge point for maximum lifetime. 40% is about the lowest the battery should be allowed to go. If you start looking for an outlet when it reaches 50%, you'll probably be charging it before it reaches 40%. (And once you get through those first 3 cycles, don't worry about overcharging it - the charging circuit in the phone turns charging off when the battery is fully charged, even if the charger is still connected. I've had phones lost under the mess on the workbench, plugged in and charging for a month or more, with no problem.
    Ntchwaidumela likes this.
    11-26-2016 12:21 PM
  6. missmotta's Avatar
    Congrats on your new phone! I think that I also had that experience when I first bought mine. All those app installations and updates, syncing new stuff, etc.
    I'm not sure about your carrier, but I turned off Wi-Fi calling and that really improved my battery life
    11-26-2016 05:07 PM
  7. Jdroids's Avatar
    Make sure to turn off google location history and smart network switch if enabled. Those are known battery suckers. I think the phone will settle down in next a few charging cycles.
    11-27-2016 06:55 PM
  8. 420lyfe's Avatar
    I'm using the s7... my battery life isn't like yours at all but it's not like you say either... it sure doesn't last me 10 hours.... or an entire day, but I see your point... Yours drained pretty darn quick. Mine lasts me 4-5h SOT. It really depends on the apps you're running and what's going on in the background... many things to consider. You can return/replace your device if needed since it's new... it could have a flaw. You never know.
    11-27-2016 07:13 PM
  9. ThrottleJohnny's Avatar
    Make sure you disable the Facebook app. It's a battery killer!
    11-28-2016 11:16 AM
  10. B. Diddy's Avatar
    Welcome to Android Central! Charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:


    1. The main Settings>Battery screen.
    2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
    3. The Screen category (to see total Screen On time).
    4. The Cell Standby category, if present (to see Time Without Signal).


    http://forums.androidcentral.com/gen...d-central.html


    You might have to install a 3rd party battery monitor, like GSam Battery Monitor, to get the Cell Signal Strength graph.
    12-02-2016 04:00 PM
  11. B. Diddy's Avatar
    Duplicate threads merged
    12-02-2016 11:56 PM
  12. 12of12's Avatar
    I don't know if these are extremely accurate because I keep my phone off most of the time (Always On Display is always activated). My battery decreases by 1% every 4 to 5 minutes (Ive been using the android central app for the past 20 mins now). Also, I've been using this animated wall paper called forest just in case that helps. Hope the screenshots tell something; I'll be posting a new set the next time I charge it to 80 ish% and I'll use it normally.
    Attached Thumbnails Why does my battery life drain so fast? HELP!-745.jpg  
    12-03-2016 08:07 PM
  13. 12of12's Avatar
    12-03-2016 08:15 PM
  14. B. Diddy's Avatar
    Unfortunately, only one of the screenshots is showing. Are you following these steps? http://forums.androidcentral.com/gen...d-central.html
    12-04-2016 06:08 PM
  15. 12of12's Avatar
    Attachment 247421

    Attachment 247422

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    Why does my battery life drain so fast? HELP!-762.jpg

    That's weird, on the android central app, all the screenshots appear. I'm just clicking the paper clip, then a list of the photos I attached appear below where I'm supposed to write. I then click the individual attachments so they appear on the place I'm supposed to write as this: '[ATTACH][/ATTAC]' Anyways, I don't know if spacing the attachments on the post by pressing enter between them will make a difference but as far as I know, I'm pretty sure I'm doing every thing correctly. That or it allows me to only post one at a time which doesn't make much sense as all the screenshots appear on my device on the app.
    12-04-2016 09:18 PM
  16. 12of12's Avatar
    Hey anyone? I want to know if my battery should run out this fast.. Right now 60% of my battery will last around 5 hours if I use applications like YouTube and of I do some browsing through the internet. I have many background applications running such as a circle sidebar, I have an animated wall paper called forest and I have a battery display called energy bar.
    12-07-2016 09:09 PM
  17. B. Diddy's Avatar
    Hey anyone? I want to know if my battery should run out this fast.. Right now 60% of my battery will last around 5 hours if I use applications like YouTube and of I do some browsing through the internet. I have many background applications running such as a circle sidebar, I have an animated wall paper called forest and I have a battery display called energy bar.
    Sorry -- it would just be good to see all of the screenshots before making a guess as to what the problem might be. Can you post them using the desktop AC forums site instead of the app?

    From the screenshots I could see, at least it doesn't look like poor cell signal is a culprit. Do you have an SD card inserted? If so, unmount it and remove it, then see if that makes a difference, since a corrupt media file on the card can cause the system to work overtime while the Mediaserver tries to scan that file and include it in the correct media database.

    It'd be helpful to see how long the phone is being kept awake as well.
    12-07-2016 09:46 PM
  18. 12of12's Avatar
    alright, I guess the app isn't working out. I've been taking screenshots daily so when I have the chance to go on my PC, I'll give it a go. Thanks for your persistence and sorry if I sound urgent, I just don't want to end up paying so much if my battery life isn't what it's supposed to be. My s7 is so much better than my old iPhone 5 and to be fair, I am throwing a lot at this phone and it's still lasting me quite a while throughout the day. I just want to make sure everything is fine.
    B. Diddy likes this.
    12-07-2016 11:28 PM
  19. teletraan1's Avatar
    My battery drains abnormally fast too. I used to be able to go a day and a half no problem. Now I have to charge 3 times a day. Unacceptable. Battery usage shows Android System is using around 30%!!!! That's not normal at all is it? Others I know are less than 10%. I feel like this all started after I installed Samsung Pay.
    12-09-2016 01:33 PM
  20. 12of12's Avatar
    I have android system at 30ish as well.. but it changes to under 10% if I'm doing other tasks such as watching YouTube so..

    UPDATE: hopefully I'll be free tomorrow to post some screenshots from my PC
    12-13-2016 09:34 PM
  21. chanchan05's Avatar
    Clear your system cache. That's known to be one of the fixes for increased Android system usage.
    teletraan1 likes this.
    12-14-2016 07:34 AM
  22. teletraan1's Avatar
    Thanks for the tip! System cache cleared. We'll see if anything changes.
    12-14-2016 11:24 AM
  23. teletraan1's Avatar
    Clear your system cache. That's known to be one of the fixes for increased Android system usage.
    So clearing the system cache didn't change anything. Android system is still using about 30%
    12-15-2016 11:42 AM
  24. GS5TR's Avatar
    System cache clearing has nothing to do with android system usage. It will only delte all user, background activity. You will need to shut down android system apps manualy or with a 3th party app.
    12-15-2016 01:13 PM
  25. chanchan05's Avatar
    System cache clearing has nothing to do with android system usage. It will only delte all user, background activity. You will need to shut down android system apps manualy or with a 3th party app.
    Uh no. Never use a Task killer. We have articles here saying why that is a bad idea. And that's the idea, deleting the background activity.
    12-15-2016 03:54 PM
29 12

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