Ok I got a sprint sg3. Model # SPH-L710. I got two extended batterys from ebay. There white and brand name on them say MAX POWER. they are 4500mAh. when I got the batterys I put one in my phone and ran it tell my phone shut off. Put it on the charger for 12 hours, then turned it back on it said it was at 100% still pluged in. As soon as i toke it off the charger it went to 83%. I let it sit bout about 10 minz and it went back up to 95%. It has done this now for the last 2 weeks. So i just thought it was a bad battery. so i switched to the other extended battery I got with the deal. Needless to say it is doing the same thing. The battery is lasting me about 38 hours. Im just wondering if anyone is having the same problem of it saying its charged to 100% but when you unplug the phone it drops down to 85% then if you let it set for 10 or so minz it jumps back up to 95% but never goes back to 100%. I always charge the phone for 8 hours. Everything is stock no root done.