Makita LXT 18 Volt Lithium-Ion Batteries 2 Pack, Model# ...

LXT Lithium-Ion battery and optimum charging system produces 280% more lifetime work with 2x more cycles. 40% lighter than traditional 18V batteries. 5x Lower self-discharge keeps battery cells active and ready for use, even after long periods of storage Charging at any time will have no effect on the battery Built-in shock absorbing features protect the battery 16 firm holding contact terminals reduce the risk of power loss/fluctuation in high vibration work environments Batterys built-in Memory Chip communicates with the charger to maximize battery life using 3 Active Controls (Current, Voltage & Thermal)