10-07-2011 04:03 PM
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  1. m.vasquez009's Avatar
    how arre you guys getting such great battery life i have my bluetooth off auto syncs off brightness turned down gps isnt on but im getting about 9 hours battery life and all these posts im reading have people saying they are getting like 15 hours battery life...any suggestions people?!?!?!
    09-29-2011 03:58 PM
  2. Jok3sta's Avatar
    I'm in the same boat man.. please share your secrets ppl lol

    Tapatalkin' it from my Epic Touch 3g
    09-29-2011 04:09 PM
  3. atl10pnr's Avatar
    A lot of it boils down to how you are using your phone and signal strength. I get great battery life when just checking email,browsing the web and texting . When at work where I get a terrible signal my battery life really takes a big hit. Also when playing games battery life takes a big hit. At home went to connecting to my wifi network and battery life also got much better. As have a terrible 4G signal in the house good 3G but wifi is better at home. With all we do with these phones even 9 hour battery life is still not bad. Only have 2 things that auto sync. One does it was every 12 hours the other once an hour.
    09-29-2011 04:23 PM
  4. JayWill's Avatar
    How is your signal strength? I really think that people who are having battery problems are having a hard time locking on to a signal in their area. On minimal use today, I've only gone through 12% of my battery in 6 1/2 hours. This includes streaming audio over bluetooth during my 40 minute drive to work, a 5 minute video chat over GTalk, 15 minutes of web browsing and the occasional screen on to check texts and email.

    Again, the above is minimal use for me though, as I've barely had the screen on. FYI my "Phone signal" bar on the battery meter has been solid green for about the past 4 hours. I get great signal strength here in my office. It's locked in with a kung fu grip. Attached are shots of my use and remaining % today, based on the minimal usage I described above. But really, I'm not doing anything special.

    On a normal day with my normal screen on time I get about 16 hours out of my battery. I wish I could help you guys but it's hard to tell what the difference is.
    09-29-2011 04:37 PM
  5. HollyDolly's Avatar
    How is your signal strength? I really think that people who are having battery problems are having a hard time locking on to a signal in their area.
    Very true, this. I've experienced it myself. I get horrible reception indoors and my battery takes a big hit as a result. When I'm outdoors and have 3G only turned on and am browsing, tweeting, marketplace browsing, my battery is minimally affected (about 7-8% in 30 minutes of constant use). When I turn 4G on (and it actually connects), the battery life drains a bit faster but not by much, when the signal is good.

    Indoors - with poor signal - I literally can watch my battery go down about 10-15% in 35 minutes of minimal use. When I'm on my home network alone (turning off 3G/4G), and using some serious data, the battery can last quite a few hours. I haven't run it down to almost 0% yet, but after about 5 hours of heavy phone use with Wifi, it did get down to about 10%.

    Decreasing screen brightness also helps with the battery, as is turning off 4G when it's not connecting, and making sure to kill unnecessary background apps (to do this: On the Home page, click and hold the Home key and a Task Manager box will pop up. Click the Task Manager button and it'll take you to the Active Apps list, where you'll see apps running in the background). I use the Task Manager often, and will do an "Exit All" in the Active Application page, then go two tabs over (RAM) on the same page and hit Clear Memory. This will briefly turn your 3G/4G off, but will reconnect again, yet clear other memory-eating/battery draining apps that you're not using in the present.

    Making phone calls also seems to drain the battery a lot faster, esp if signal is poor..which in my case, it is.
    09-29-2011 05:23 PM
  6. error4o4's Avatar
    Something else if you can do for us:

    After a full days (or however long) battery use, take a photo of the battery stats.

    Settings, About Phone, Battery Usage

    Press Home key then power button

    It'll take a photo of that screen , attach that photo to this thread.

    It will give a great idea as to what is using your battery.

    Also then touch the graph its self, this will show another detailed photo of what is using battery. Screen shot that and add that too to the thread.

    We can go from there.

    Thanks.
    09-29-2011 05:34 PM
  7. gadgetluva's Avatar
    I don't have bad battery life, but it's not great. 4G was on from about 8am to 5:30pm (bad 3G coverage at my office, it actually drains my battery faster if I don't switch on 4G). I have about 3% battery life left at the time of this screenshot, and I've had the display on for a total of 2 hours at around 15% brightness. Not shabby. Battery life is the best of any Android I've used so far.

    09-29-2011 06:27 PM
  8. oskar1995's Avatar
    Let's see. I leave Bluetooth on all day....its connected about 2.5 hours a day. I have 3 GMail accounts that push email to my phone and sync up whenever. Background data is on, GPS in on (but not active) all day, No 4G since my coverage isnt great. Plume (twitter), Pocket Casts check out every 1-3 hours. About 20-40 minutes of games/browser while on the crapper at work. A handful of texts, emails and checking the phone during the day. The phone was taken off the charger at 5:40 AM...it is now 7:40 PM and I have 40% battery life. my cell standby says the time on is 13h 59m and time without a signal is 3%.

    I dont know what I'm doing right, but this phone is incredible.
    09-29-2011 06:40 PM
  9. Johnly's Avatar
    10 hours and 26 minutes. 59% left. On wifi for 3 hours. Droid X would need plugging in about Now. Love the painless use of this super phone.
    09-29-2011 06:46 PM
  10. JayWill's Avatar
    I don't have bad battery life, but it's not great. 4G was on from about 8am to 5:30pm (bad 3G coverage at my office, it actually drains my battery faster if I don't switch on 4G). I have about 3% battery life left at the time of this screenshot, and I've had the display on for a total of 2 hours at around 15% brightness. Not shabby. Battery life is the best of any Android I've used so far.
    See there's that huge AOS % again. I'm just not understanding that with your 2 hours of screen on time. As you can see from the attached screenshots, I have 51 minutes of screen on time today at 75% brightness, and it's half of my battery usage, as it usually is for me. Could your low display % be because of your 30% brightness setting? AOS on the other hand is at 14% for me. As of writing this I have 8 1/2 hours into this battery and I have 76% left.
    09-29-2011 06:51 PM
  11. Ricolando's Avatar
    This has been mentioned here and there, but keeping Touchwiz definitely seems like another thing that will help. As much as I love golauncher it was definitely sucking some life out of my battery.

    Sent from my Epic 4G Touch
    09-29-2011 07:42 PM
  12. oskar1995's Avatar
    Yea I would certainly avoid apps that run constantly. I think the battery management system keeps shutting them down and they restart over and over again. I'm no software engineer but its just a hunch. I don't mind Touchwiz, i have a few things that update every so often, but nothing that is always running that might get in the way.
    09-29-2011 07:52 PM
  13. JayWill's Avatar
    This has been mentioned here and there, but keeping Touchwiz definitely seems like another thing that will help. As much as I love golauncher it was definitely sucking some life out of my battery.
    I don't know. I'm running Go Launcher right now and even though my screenshots above were on a day of light use, I don't find it to be eating any more battery than stock TouchWiz did.
    09-29-2011 08:07 PM
  14. Rockser2g#AC's Avatar
    I switched roaming to Sprint only this morning and I saw a huge difference. My battery life was amazing when I got the phone, then all of a sudden it dropped to crap. The roaming is the only real difference between these shots.
    I got the order wrong but you get the idea...
    09-29-2011 08:55 PM
  15. Ricolando's Avatar
    I don't know. I'm running Go Launcher right now and even though my screenshots above were on a day of light use, I don't find it to be eating any more battery than stock TouchWiz did.
    Yeah it wasn't huge but after trying some things I definitely gain some run time without it. That being said I'm only anal because I keep reading these threads lol. Sometimes ignorance is bliss... I should just be happy because this baby kills my old epic when it comes to battery life!

    Sent from my Epic 4G Touch
    09-29-2011 09:58 PM
  16. The Peanut Master's Avatar
    Quick question: For those who are getting really good battery life (and those who aren't too), how much battery % do you lose in 20 minutes with the display off? It seems like any more than 1% loss means there's a problem, does that seem accurate?
    09-29-2011 10:42 PM
  17. gadgetluva's Avatar
    See there's that huge AOS % again. I'm just not understanding that with your 2 hours of screen on time. As you can see from the attached screenshots, I have 51 minutes of screen on time today at 75% brightness, and it's half of my battery usage, as it usually is for me. Could your low display % be because of your 30% brightness setting? AOS on the other hand is at 14% for me. As of writing this I have 8 1/2 hours into this battery and I have 76% left.
    If you notice, I'm barely on wifi, my signal isn't green all the time, and 4g was turned on too. Also, it depends on what Apps you have installed and I leave gtalk on all the time and everything is always syncing.
    09-29-2011 10:46 PM
  18. milominderbinde's Avatar
    Follow these steps to set up the power management.

    30+ Hours Battery Life on the Epic 4G Touch-How Long Can You Go?

    ...how much battery % do you lose in 20 minutes with the display off? It seems like any more than 1% loss means there's a problem, does that seem accurate?
    That is exactly the test we use to find what the problem is, >1% in 20 minutes.
    09-29-2011 11:12 PM
  19. The Peanut Master's Avatar
    Yep that's actually what I'm referring to. I've explored the issue further and the problem that I'm personally having is clearly related to wifi. When I'm connected to my home network as I am now I'm losing 1% battery about 5-6 minutes, but when wifi is off it's about every 20-25 minutes. 5-6 minutes seems like way too much, so I guess I'm wondering if this is normal or if that points to an issue with my wifi network or my phone's wifi card.
    09-29-2011 11:42 PM
  20. milominderbinde's Avatar
    WiFi should be 1% an hour. It could be a setting in your network not letting the phone sleep.
    09-30-2011 12:47 AM
  21. oskar1995's Avatar
    Quick question: For those who are getting really good battery life (and those who aren't too), how much battery % do you lose in 20 minutes with the display off? It seems like any more than 1% loss means there's a problem, does that seem accurate?
    That seems to be pretty accurate. Pretty much if I don't touch my phone for an hour it won't lose more than 2 MAYBE 3 percent.
    09-30-2011 04:48 AM
  22. milominderbinde's Avatar
    Then something is wrong. It should be 1% an hour with everything off. Maybe poor signal or roaming? A rouge app. Try the steps to see.
    30+ Hours Battery Life on the Epic 4G Touch-How Long Can You Go?
    09-30-2011 08:27 AM
  23. dguidry12's Avatar
    To be honest folks ..being that this phone has poor signal the battery is jot going to be great at all.. this phone does not have good batter life if you use it heavy
    09-30-2011 10:42 AM
  24. garrettfarnum's Avatar
    This is what I got today, I had about 23% right after I took these.
    Music is the last one on the list and has only used 2% in case you can't see that.
    10-06-2011 08:44 PM
  25. taylormah's Avatar
    For the people who are getting consistent green phone signal bar, what is the signal strength (in dbm) that you have? You can find it in Home->Settings->About Phone->Status. I get around -86dbm, and I have real bad battery life. How much dbm is needed to be green on signal bar?
    10-07-2011 03:43 AM
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