Maximalpower replacement BLACK+DECKER LBX2040 40V 36V-42V1.5Ah Lithium Ion Battery Only sold and shipped by amazon.com. All other marketplace vendors are selling counterfeit products that do not perform the same 100% Compatible with original manufacturer equipment Works with BLACK& DECKER 36V Cordless Power Tools: Fits String Trimmer, Hedge Trimmer, Chainsaw, Sweeper and Sweeper Vac