The Makita ADP10 charger adaptor allows you to charge your 14.4V - 18V LXT batteries with the DC40RA XGT charger. The charging performance is as high as that of DC18RC. Not compatible with the following batteries, adapters and checkers: BL1430A, Ni-MH batteries, ADP01, ADP02, ADP03, ADP04, BTC01, BTC02, BTC03.