LXT® lithium-ion 5.0Ah battery, 2/pk. Integrated L.E.D. battery charge level indicator allows user to monitor battery charge. charges faster and works longer than standard lithium-ion batteries. Reaches full charge in 45 minutes or less. Impact-resistant outer case and shock-absorbing inner-liner are engineered to protect the battery. Includes two 18V LXT® lithium-Ion 5.0Ah batteries.