Makita 193352-7 BH1420 14.4-Volt 2.0 Amp Hour NiMH Slide Style Battery 8 Multi-contact terminals ensure a tight connection to the power tool even under extreme vibration. CPU memory chip records usage history and transmits it to the MAKSTAR charger to determine optimal charge path. Forced air cooling system circulates air through the entire battery to cool it down for maximum life. Shock-absorbing construction protects battery cells against dust and vibration with 4 heat dissipation plates. Fits all MAKSTAR 14.4-Volt Cordless Tools.