Drills Battery for 7.20V 1500mAh Ni-Cd Ryobi 1311145, 1400668, HP61K, RY721 Battery Type: Ni-Cd / Color: Black Voltage: 7.20V (Compatible with 7.40V) Capacity: 1500mAh / Rate: 11.00 Wh / Weight: 455.70 g Remarks: Only Charge with Ryobi 4400100 AC Adapter. Please ensure the product(s) fits the brand, model, part number and dimension of your device.