Mr.Batt Replacement Battery for iRobot Braava 380t Battery for Braava 380, Mint 5200, 7.2 Volt 3000mAh 50% higher energy than the original battery, power your robots to work for a longer time Compatible with iRobot Braava 380t, 380, Mint 5200, 5200B, 5200C Compatible with the original charger Tested by manufacturer to match OEM products Ni-MH rechargeable batteries will achieve best performance after 3-5 fully charge cycles