after I tested the battery for a few weeks, I am unfortunately convinced mediocre. I need the battery still everyday load as it otherwise the next morning gives up the ghost. The Óriginalakku had the phone with them at the beginning, has kept much longer even though I have time still belongs to the MP3 cell phone, I no longer do now. Would not go in the charging stand. I am really at a loss to come together so many different opinions as here. And no I'm not that run with me in the background as many apps or the like of opinion. Would in any case no longer buy the battery.