The Makita Lithium-Ion system produces 430% total lifetime work with 2.5x more cycles when compared to traditional Ni-Cd batteries. Makita Lithium-Ion batteries provide longer run times and 5x lower self-discharge (for use any time) and are 40% lighter than traditional Ni-Cd batteries. The 10.8V Makita Lithium-Ion battery charges in under an hour; only 50 minutes. The charger earned the ENERGY STAR(r) label for meeting the strict energy-efficient guidelines set by the US Environmental Protection Agency (EPA) and US Department of Energy (DOE). The battery runs Makita Lithium-Ion model numbers TD090DW, DF030DW, DF330DW and ML100W.