AccuCell Replacement battery Li-Ion suitable for Typhoon, E-TEN PDAhigh-power rechargeable battery with a capacity of 1200-1440mAhTyphoon MyGuide M500Typhoon MyPhone M500E-TEN M500E-TEN M600Original rechargeable battery name: P/N 4900301Technical specifications (no original Typhoon, E-TEN rechargeable battery):System: Li-Ion rechargeable batteryVoltage: 3,7 VoltCapacity: 1200-1440mAhDimensions (LxBxH): 52,9x33,9x9,7mmWeight: 34Gramm