Powerextra Roomba Replacement Battery for Irobot Roomba 400 405 410 415 416 418 4000 4100 4105 4110 4130 4150 4170 4188 4210 4220 4225 4230 4232 4260 4296 100% Compatible with original manufacturer equipments and chargers The products were tested by manufacturer to match original specifications of iRobot products Battery Type:NI-MH; Capacity:3500mAh; Voltage:14.4V (Value, Dependability, Quality) Ships Directly from California US delivered FAST All Powerextra products come with a 30-day money back and a 12-month limited seller's guarantee against manufacturer defects from date of purchase, and 24 hours' friendly customer service!