AccuCell Replacement battery suitable for Sony Ericsson mobile phone:Sony Ericsson K550iSony Ericsson K800i, Sony Ericsson M600iSony Ericsson P990i, Sony Ericsson V800Sony Ericsson W300i, Sony Ericsson W850iSony Ericsson W900i, W950i, Z530i, Z610i, Z800i Bauähnlich Sony Original rechargeable battery: BST-33 Quality mobile phone battery incl. electrical safety device for preventing overcharge and overheating.This rechargeable battery has a short-circuit protection. It`s possible to charge this battery with your existing charger. Technical specifications (no original Sony Ericsson mobile phone rechargeable battery):System: Li-Ion rechargeable batteryVoltage: 3,6 VoltCapacity: 500mAhDimensions (LxBxH): 4,7mmWeight: 15Gramm