Makita 191K01-6 XGT 40Vmax Power Source Kit (2 x 4.0Ah Batteries) This new Power Source kit in the 40Vmax range from Makita has all your power solutions stored in a handy MakPac case. It contains the DC40RA and 2 x BL4040 40V 4.0Ah batteries. DC40RA Features: 2.5Ah battery charging time - 28 minutes 4.0Ah battery charging time - 45 minutes Compatible with interchangeable adaptor ADP10 for charging LXT Li-ion batteries New raised and enlarged charger indicator status light for clearer indication Can be wall mounted BL4040 Features: New type of cell introduced Greatly increased water and drop resistance Digital communication between the battery and the charger Digital communication between the battery and the tool Extraction rate of XGT batteries is higher than that of LXT Able to record more detailed information on battery usage Battery fuel gauge: 4LED gauge with a check button Cooling system for maximum battery life Developed for products used in continuous operations