I had noticed that lately my battery was going down at an alarming rate. I thought it was just because I had a lot of things going on along with being set at 100% brightness on the display AND being hooked up to a Gear smart watch. Today I decided to try out one of the Hyperion battieries I recently bought (same capacity) and it seems to be doing much better than the Samsung battery. Is it possible that battery could have gone bad that fast? I've had the N3 since late january and it was doing fine up until a few days ago. The Samsung stock battery was maybe down to 50+% after about 5-6 hours. :'(