Keep your iRobot Roomba vacuum cleaning robot operating at peak performance! This original 14.4V lithium-ion battery is suitable for the iRobot Roomba 900 series. This lithium-ion battery has a capacity of 3300mAh (48Wh). iRobot part number 4462425. What's In The Box: 1 Lithium Ion Battery Specifications: Product Dimensions (H x W): 1.8 in / 4.4 cm x 5.5 in / 14 cm Product weight (lbs): 1.45 lbs Retail Box Dimensions (L x W x D): 4.4 in x 2.8 in x 11.1 in 11.1 cm x 7.0 cm x 28.3 cm Retail box weight: 1.2 lbs