Please help me.I need to replace my original battery.I bought 2 (oem)batteries that is just terrible .they last just a few hours.i did contact local mi store(Greece) but they don't sell spare parts.did not know until know that is not possible to find a good reliable battery.Anyone had any luck;if so can you please tell me brand(if not genuine xiaomi) and where did you bought it;i refuse to accept that if your battery is dead practically you need to buy a new phone!thank you!