My battery life has been awful for the past few months (even before updating to 5.0.1). I work with a guy who also has a G3 and he is shocked at the difference in our battery lives. Right now I'm getting around 3-4 hours of screen on time, and MAYBE 10 hours low usage. Since I know it should be better I've decided to replace. I'm not interested in the 6000 or 9000 mAh batteries since it would make the phone super thick. So I'm wondering; have any of you replaced your battery with another 3000 mAh bettery? If so, which one and would you say it's as good as the original one?
Have you tried to refresh your battery? If you get a chance, try this:
1. Drain the battery to below 15%. (Try not to take it lower than 10%)
2. Turn the phone off and plug it into the stock charger that came with your G3.
3. Let it charge fully while off. (I usually do this overnight)
After that, you should get most if not all of your battery life back.
As for any other battery purchase, maybe it's me, but I only buy OEM batteries. I've got 2 OEM Batteries. I heardly ever have to swap them out, but if I do, it's nice to know that it's really easy and relatively fast to swap them out. I also keep an external battery charger so I can charge the battery that is low without it being in the phone.
If you have to have a larger battery, take a look at Zero Lemon. I've heard good things about them.