The CH-94 is a Lithium-Ion only charger is compatable with BP-80, BP-82 & BP-84 Huskie Tool batteries. During its 1 hour charge time, the CH-94 monitors battery temperature and battery voltage to ensure optimum performance. The CH-94 has re-designed contacts for stronger engagement with the battery terminals and remains stable even while in motion by allowing the battery to be clipped in place.