Hey all. Thanks for all the tips! I thought maybe I should share my experience too.
The first couple days I had my Epic, I was getting about 6 or 7 hours on a charge. Obviously not good enough. After looking through numerous forums, here is what I did:
- Installed Juice Defender - the free version, and left it with all its default settings.
- Installed Advanced Task Killer, and set it to auto-kill ("safe" setting) every time the screen turns off. I made sure to add Juice Defender and a few other apps to the ignore list.
- Installed Startup Cleaner Pro. Set it to prevent the following system apps from starting (I'm guessing this made the most difference):
- Amazon MP3
- DRM Protected Content Storage
- DRMContentLauncher
- Media Hub
- All the Sprint apps
- Voicemail (I use Google Voice, so I don't need it)
- Did the airplane mode toggle (I don't know that this really did anything though).
- While I'm at home, I leave WiFi on all the time.
After all the changes, I'm now sitting at 21 hours and 30 minutes with 33% charge left. I would have been fine with just 15 hours on a charge; I almost wet myself after seeing this much of a difference!
Of course, I'm not really sure which thing did the trick. I was impatient and took the brute force method and just did everything at once. Another thing you may want to know is my TWS is only at 2%, which might also be making a difference.
This is all with moderate usage too. Yesterday (on my current charge), I did quite a bit of ****ing around with various apps, at least a couple hours of browsing the web, and about an hour of video playback. I also looked at emails and SMS about 50 times. I don't think I had any phone calls though. I did a lot more stuff the day before, however, including a couple phone calls and playing with 4G for a while, and that charge still lasted around 24 hours.
I also rooted yesterday, and nuked a few of the Sprint apps, Amazon mp3, and Media Hub. I don't know if that made any difference or not.
Hopefully this will help someone!