I bought the battery. At first I was excited, he ran standby and then I once looked up what my phone tells how full the battery is, the battery was still full. I then I had to run an important phone call and after 8 seconds went from the phone. battery empty. I then used another phone, and the battery can be loaded about 20 hours. but it has not helped. Standby he keeps 2-2.5 hours. and if man once wrote sms or phone call about 20 minutes. even if the cell phone on the charging station is, you can not phone or write sms immediate is out of battery. for me a cheap fakeprodukt. Money has been thrown out of the windows. shame .... it does not buy, just bad