Lazada 12V 3.0AH Ni-MH Replace Battery for Craftsman 315.224520, 973.274870,11061, 11161, 9-11061, 981088-001 Battery Voltage:12V Capacity:3000mAh Battery Type:Ni-MH,Color:Black Compatiable with:Craftsman 11061,11161,9-11061,981088-001 Replace code:Craftsman 315.224520,973.274870,27487,27491,981565-000 Make sure to run this battery fully down a couple of times to properly condition it. Best to unplug the docking station and push the docking button in insure complete depletion. Safeguard features against incorrect voltage, short circuit, internal overheating