12.0V, 3300mAh, Ni-MH Battery fits Skil, Hd3736, 39.6WhBattery Fits Models: Hd3736 Battery Part Numbers: 92931 We supply generic replacements for the OEM batteries; we have had thousands of satisfied customers using these batteries as an economical alternative to the original manufacturer's battery. Canadian Batteries have supplied the replacement batteries from Cameron Sino for nearly a decade. We have had zero instances of a product being damaged while using one of our batteries in that time. If you are