The 18V Li-ion Battery and Charger Kit from Makita are ideal for powering cordless hammer drills and impacting drivers. The battery in this kit is equipped with the new LithiumTech battery platform for powering the most demanding power tools. Engineered with an active cooling fan to control the internal temperature, it also includes LED charge level indicators so you can check the battery charge remotely from the power switch of your tool or battery pack. The built-in CPU monitors charge time and conditions the batteries as they charge.