Battery type: Li-Ion - no memory-effect Capacity: 330 mAh Voltage: 8 V Energy: 2.64 Wh Number of cells: 4 Weight: 45 g Dimensions (length x width x height): 7.0 x 4.0 x 2.0 cm Compatible with the following device models: BMW 2er F45 225xe (2C71/B38X) BMW 2er F45 225iX (2A91/B48) BMW 2er F45 225i (2A71/B48) To ensure compatibility, please check to see whether the battery you are currently using is listed below.