This ultra compact cordless screwdriver kit runs on a Lithium-Ion battery with the best power to weight ratio at 177 in./lbs. The batteries and charger provide 2 times more cycles and longer run time with 5 times lower self discharge. This kit which contains (2) 7.2V Lithium-Ion batteries, a 30 minute charger, 2 phillips/one slotted fastening bits and one drill bit (1/8") with a tool case is great for mechanics, installers, fabricators and repair personnel. Maita provides a 3 year warranty on tool and 1 year warranty on battery. Makita