The LXT Lithium-Ion battery and optimum charging system provides 280% more lifetime work with 2x more cycles. It features a 5x lower self-discharge rate, keeping battery cells active and ready for use even after long storage periods, with no impact on battery life from charging at any time. Built-in shock-absorbing features protect the battery, and sixteen firm holding contact terminals reduce the risk of power loss or fluctuation in high vibration work environments. The battery's built-in Memory Chip communicates with the charger to maximize battery life using 3 Active Controls (Current, Voltage, Thermal). This battery is suitable for all Makita li-ion LXT 18 volt machines, including models like BDF451RFE, BDF452RFE, BTD140RFE, BTL061RFE, BTW450RFE, BGA452RFE, BFR750, BFR550, BCS550, BSS501, BSS610, JV180, BPB180, BJS130, BJR181, and LXT600. The DC18RC fast charger features a cooling fan and Active 3 Controls, monitoring charging voltage, current, and temperature to extend battery life and accelerate charging. When used with the ADP03 adapter, it can charge Ni-MH slide-on batteries from 9.6V to 24V, and with the ADP04 adapter, it can charge Ni-Cd and Ni-MH rod and block batteries from 7.2V to 18V. Compatible batteries include BL1830, BL1430, BL3626, BL3622, BL1415, BL1013, and BL0710.