Page 1 of 4 1234 LastLast
Results 1 to 25 of 96
  1. Thread Author  Thread Author    #1  

    Default How to Improve Battery Life for the Samsung Epic 4G

    [Reposting as a top-level post since not everyone follows the battery life thread.]

    I have written a detailed blog post about how to get improved battery life for the Samsung Epic 4G. I thought I would share it here since it seems like a common problem for many people on this forum:



    Hope it helps.
    Thanked by 12:
    + Show/Hide list of the thanked
  2. #2  
    caliskimmer's Avatar
    Retired Moderator

    Posts
    1,891 Posts
    ROM
    N/A

    Default

    Ok, I'll sticky this as this looks like it'd benefit many.
  3. #3  

    Default

    And I'm going to un-sticky the other battery life thread so we can get this fresh one going
  4. #4  

    Default

    I'll give this a try, as so far I haven't had the best success with my battery. Maybe 8 hours max per day. I did install Juice Defender and that has helped.
  5. #5  

    Default

    Since the release of the DI18 update I haven't noticed much difference between killing the DRM service and leaving it running.
    Eric Stewart - http://ericdives.com/
    For my Android experiences, see my Android related blog posts
    Treo 300 > Treo 650 > Blackberry 8703e > Blackberry 8830 > Blackberry 9630 > Palm Pre > Samsung Epic 4G
  6. #6  

    Default

    What's with the Airplane toggle thing? I could have sworn that when I read about the toggle trick, that I only did it once and it worked right away. But the last two times I restarted my phone (once on purpose, and once because the battery totally died), I toggled Airplane mode, but then I checked maybe 20 minutes later and my TWS was around 17%, so I had to toggle it again. But by the time I noticed, I had lost about 15% of my battery life So is twice the magic number? Or is there some sequence or time to leave Airplane mode on before toggling it off again?
  7. #7  

    Default

    Quote Originally Posted by rangers28 View Post
    What's with the Airplane toggle thing? I could have sworn that when I read about the toggle trick, that I only did it once and it worked right away. But the last two times I restarted my phone (once on purpose, and once because the battery totally died), I toggled Airplane mode, but then I checked maybe 20 minutes later and my TWS was around 17%, so I had to toggle it again. But by the time I noticed, I had lost about 15% of my battery life So is twice the magic number? Or is there some sequence or time to leave Airplane mode on before toggling it off again?
    Are you sure you weren't in an area without signal, and that the 17% was actually correct? In my experience if the toggle trick is not done TWS is much higher, about 50%.
  8. #8  

    Default

    Ragnar:
    No, I was in my house, and I'm in Northern NJ, and basically everywhere I go I get great coverage. I know that's not it because as soon as I do the second toggle, the cell standby percentage moves lower and lower until it eventually drops to 0% after a while
  9. #9  

    Default

    Quote Originally Posted by rangers28 View Post
    Ragnar:
    No, I was in my house, and I'm in Northern NJ, and basically everywhere I go I get great coverage. I know that's not it because as soon as I do the second toggle, the cell standby percentage moves lower and lower until it eventually drops to 0% after a while
    Interesting. It is annoying to have to toggle airplane mode twice, but at least you know the fix. I hope I'm not building expectations up too much in thinking Froyo will save us from this problem.
  10. #10  

    Default

    do you have the latest update?

    something on your phone is not right. you probably have some app sucking up all your cpu or your phone is never sleeping.

    i can easily go 12 hours without a charge. and i use my phone all day - listen to last.fm/ browse the internet/ play angry birds/ probably 50 texts total in a day at max/ maybe 10 minutes of phone calls.

    but i usually charge it before i have to worry about it getting low.
    EPIC 4G
    ROM: QUANTUM 2.O
    KERNEL: STOCK

    Thanked by:
  11. #11  
    gigatigga's Avatar

    Posts
    31 Posts
    Global Posts
    57 Global Posts

    Default

    I would warn everyone to skip the Startup Auditor Free app. This thing ended up force closing on boot, which boots apparently before the home screen (i hadn't even disabled the drm service in it yet) and i had to hard reset my phone. I'm not an android/computer n00b either. Really an awful app to be recommending anyone install.
    Thanked by 2:
  12. Thread Author  Thread Author    #12  

    Default

    Quote Originally Posted by gigatigga View Post
    I would warn everyone to skip the Startup Auditor Free app. This thing ended up force closing on boot, which boots apparently before the home screen (i hadn't even disabled the drm service in it yet) and i had to hard reset my phone. I'm not an android/computer n00b either. Really an awful app to be recommending anyone install.
    Perhaps there is a bug in the free version? I'm not sure. I use the paid version and have not had any problems whatsoever. That said, there are other apps on the market that offer similar functionality so feel free to experiment. If anyone has any experience, positive or negative, with any startup auditor apps please share for the benefit of everyone here.
  13. #13  

    Default

    I installed Startup Manager and removed the items mentioned from starting up. I have also turned off 4G as I'm not in an area that has coverage, and I turned off Bluetooth. What a difference that made yesterday. I was over 50% even at 10pm. Today I have turned Bluetooth back on but left 4G off, I want to see what happens today.

    I also uninstalled Juice Defender and the App Killer that I had installed.

    If I can make it to 10pm with even 20% of battery life left I will be well happy
  14. #14  
  15. #15  
    rando991's Avatar

    Posts
    550 Posts
    ROM
    Stock/Rooted

    Default

    Does anyone know what the Airplane Mode trick actually does? How does it improve battery life?
  16. #16  

    Default

    Jason, Battery life was one of my concerns when I decided to purchase the Epic. Thanks for the great info in your blog. It made me realize that the Juice Defender app was hurting battery life by turning off wifi while I was at home when the phone sleeps. I changed the settings on Juice Defender to never turn off wifi while in range, but it disables it if I'm not near a known network. My 3G signal is not very good at home so disabling wifi would certainly cause additional drain.

    I work out of the house for several days, and then travel several days at a time. I bought a few spare batteries and chargers to accomodate my travel needs. I start the day with 2 spare charged batteries. I bought the samsung OEM spare battery and charger with stand. I notice that my batteries are 99-100% charged when using the Samsung charger as opposed to 95-97% when using the phone to charge the battery. I have seen a few complaints on batteries not fully charging, so I thought I would offer my observation.

    I also bought a pair of "samsung" batteries and another wall charger for just $25. The batteries have a samsung label, but I noticed the name on the label does not include the upside down V for the A in the Samsung name. Even though they are clearly not the OEM batteries, they still provide comparable performance (90% +/-) at a great price. I don't want to appear like a marketer of etailers so I will just say I found them at the large river in s. america.

    I'm hoping 2.2 will include some efficiencies that help battery life. Thanks again for the tips.
    Thanked by:
  17. #17  
    rando991's Avatar

    Posts
    550 Posts
    ROM
    Stock/Rooted

    Default

    I have the pay version of Auditor and so far so good.
  18. #18  

    Default

    Quote Originally Posted by heymista View Post
    ...I changed the settings on Juice Defender to never turn off wifi while in range, but it disables it if I'm not near a known network. My 3G signal is not very good at home so disabling wifi would certainly cause additional drain...
    I took all the tricks I could find here and in all the other battery life threads and compiled them into the Getting Started with Android - Tips and Tricks section on Battery Life Tips and Tricks. Getting JuiceDefender properly set up can make a big difference. It is a list of general tips not specific to any one phone. Hopefully they will fix the Epic's DRM and Low Cell Signal bugs. But the advice still stand: CHeck to see what processes, app, and widgets are taking your battery.

    Thanks for so many great ideas here and in the old thread.
    Last edited by milominderbinder; 11-04-2010 at 11:40 AM.
    Milo
    ← Tap Getting Started at the top of any page for help with:
    - Settings - Email - Backup Everything - Phone - Messaging - Music & Photo Sync
    - Keyboards Folders - Favorite Apps - Extending Battery Life - My Avatar
    - iPhone User's Guide to Android - (Palm) - Tablet & Phone Comparison - Epic4GT - ATT - TM
    If this helped, please click Thanks & Like↓
  19. #19  

    Default

    Quote Originally Posted by jvoegele View Post
    [Reposting as a top-level post since not everyone follows the battery life thread.]

    I have written a detailed blog post about how to get improved battery life for the Samsung Epic 4G. I thought I would share it here since it seems like a common problem for many people on this forum:



    Hope it helps.
    Super helpful post, thanks Jason!
  20. #20  

    Default

    I just discovered the trick where you can adjust your screen brightness using the top status bar. You just slide your finger across the top (from left to right or vice versa) as if there is an actual slider up there to drag across the screen. I never knew this, and now I dont need to use auto brightness anymore because I was sick of using the homescreen power widget. Android is the shiz lol.

    Also, I just swapped to another Epic due to the screen being lose and I think I found the culprit for my battery drain. I had the Touch to Talk app installed on my phone, and that has to constantly run in the background to receive chirps. After going through and installing all my old apps on this new Epic and forgetting to install TiKL, I noticed my battery life went back to the 24-36 hour range again. Here's to hoping that fixed the problem.

    BTW.....this keyboard skip is annoying and has been happening on all the Epics I've had. Makes me wish we had a keyboard-less Galaxy S device even more than I originally did when I first saw the Galaxy S devices and the price of the Epic (unless its just a software problem).
  21. #21  

    Default

    Thanks for all of this... I did many (if not all) of the tips the other day and am seeing less of a battery drain! Told hubby as well because he is on his phone more then I am.
  22. #22  

    Default

    Yup, we got some good hardware - it's just a matter of tweaking the software it to make it work for you
  23. #23  
    rando991's Avatar

    Posts
    550 Posts
    ROM
    Stock/Rooted

    Default

    I installed the free Juice defender and set data at "always disenabled" and screen at "on at screen unlock" and this works like a champ. As soon as my screen is off 3G turns off. I also bought Power Control Plus which allows you to add as many button/widgets as you want ( I started with 4x1 and added about 7). It has a "2G/3G" button but it doesn't work with the Epic but there are 2 other cell data buttons. The first one DOES turn 3G on or off, so I have 2 ways of turning 3G off. This (turning 3G off at work where I have a very poor signal) has dramatically improved my battery life! Juice Defender has a free but limited version and Power Control Plus is $1.99. I recommend both especially if you are in an area of poor 3G reception, that way you can still receive calls and text but just not data which you can turn back on when you need it. I'm considering now buying the Ultimate Juice Defender for more options ($5.99). Hit thanks if I've helped.
  24. #24  
    rando991's Avatar

    Posts
    550 Posts
    ROM
    Stock/Rooted

    Default

    Update: Tried the Ultimate Juice Defender for 1 day and uninstalled it in favor of the free version. I found I liked the Free version coupled with Power Control Plus. I like having more instant control, but the Ultimate did have a lot more options for Auto control.
  25. #25  
    Windfrenzy's Avatar

    Posts
    152 Posts
    Global Posts
    155 Global Posts
    ROM
    stock

    Default

    To avoid overcharging and to troubleshoot battery drain, I've been putting my Epic into airplane mode at night off the charger. It will lose approx. 30% of battery over 6-7 hours! WTF is it doing? Biggest cpu users per Spare Parts are android system and suspend. Contrast that with my off-network Centro which has 60% left after weeks on the shelf. Seems like something fundamentally wrong. Any explanations or suggestions would be great.
Page 1 of 4 1234 LastLast

Tags for this Thread

Posting Permissions

B