13.2V, 4000mAh, Ni-MH Battery fits Sumitomo, Bu-66l, Bu-66s, 52.8WhBattery Fits Models: Bu 66l, Bu 66s Battery Part Numbers: Bu 66l, Bu 66s Cameron Sino batteries have manufactured generic batteries for many years. We offer the freshest batteries straight from the manufacturers; they are reliable and built with safety as an essential part of their construction. Batterybuyer is a genuine Canadian supplier. We operate many inventory systems, and all products over nine months old are disposed of and replaced with fresh