Tenergy 7.2V 2000mAh Replacement Battery for iRobot Braava 380t & Mint 5200 Fully compatible with iRobot models: Mint 5200 and Braava 380t while offering longer run time. Battery life lasts for hundreds of cleaning cycles Easy to charge and connect Voltage: 7.2V, Capacity: 2000mAh Unit Dimensions: 29.5mm x 43.5mm x 54mm / 1.2" x 1.7" x 2.1"