My Worx 56v battery was completely dead. I own a few 56v tools, lawnmower, hedge trimmer, leaf blower, but the company discontinued the batteries. Found MTO online, followed instructions to ship my battery (very easy to do) and in less than 2 weeks got a rebuilt battery that is working as a new unit. Saved me money not having to trash my tool and purchase a new complete set of garden tools. I will definitely use MTO again.