Lazada 18V 2000mAh Li-ion Battery Replacement Power Tool Batteries for Rigid AEG BFL 18 AC840084 L1815R Battery Voltage:18V Capacity:2000mAh Battery Type:Li-on,Color:Blue Compatiable with:BSB 18G, BS 18 G Replace code:L1815R 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