AccuCell Li-Ion rechargeable battery suitable for Nokia mobile phone:Nokia E61iNokia E90 Communicator Bauähnlich zu folgenden rechargeable batteryvarianten: Nokia mobile phone rechargeable battery BP-4LQuality 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 Nokia mobile phone rechargeable battery):System: Li-Ion rechargeable batteryVoltage: 3,7 VoltCapacity: 1100mAhDimensions (LxBxH): 4,7mmWeight: 25Gramm