When something is listed as a replacement you need to understand that it only fits the drill and will not work with you existing charger. That is an additional purchase. Every other replacement battery I have purchased over the years has worked with the charger that came with the drill except this one. Or was not disclosed and now I have to buy one. The battery fits and what charge it has worked for the drill but truly a replacement it is not. It just fits the drill and requires an additional purchase.