wirelessfinest battery replacement for wahl magic clip clipper hair cordless designer senior sterling-4 beretto super taper part 93837-oo1 + tool repair fix dead power issue wirelessfinest fix dead power low charge issue compatible for wahl hair clipper. high capacity high quality rechargeable replacement battery, perfect fit. screwdriver tool included, make the repair work much easier. built in connector for easy install and good wires connection. compatible replacement for for wahl magic clip clipper hair cordless designer senior sterling-4 beretto super taper part number 93837-oo1