Hello..I had my Galaxy S2 for 10 months and I think my battery life is not normal. (bad battery life) Just today I figure that my phone's battery is draining 1% in every 10 minutes while not doing anything. If I do something with my phone, I think it's going to drain faster I was over charging the phone (kept the phone plugged when it's 100%), and now, I assume that is the reason why battery is draining so fast. I didn't try the factory reset, but I don't think that would help :O I didn't use juice Defender until now, but I don't think it's doing anything. should I replace the battery? or is this normal?