AccuCell Li-Ion-rechargeable battery for Traveler Digital--Kamera: Traveler Slimline X4 Traveller Slimline X4Original rechargeable battery name: NP-900, NP900, 02491001500, 02491-0015-00 Konica Minolta P/N 02491-0037-01, Sanyo 02491-0015-00, Avant BATS4Technical specifications (no original Traveler Slimline X4 rechargeable battery):System: Li-Ion rechargeable batteryVoltage: 3,7 VoltCapacity: 650-820mAhDimensions (LxBxH): 43.7x31.3x7mmWeight: 18.5GrammQuality rechargeable batteries consisting of brand name batteries e.g. Panasonic, Toshiba, Sanyo etc.