DEWALT DC9360 36-Volt Lithium-Ion Battery Pack DEWALT exclusive NANO-phosphate lithium-ion cells provide high power for corded performance; deliver 2-3x more run-time vs. 18v; offer long battery life; durability: 2,000 recharges Lightweight design- 2.4 lbs; same weight as an 18-volt battery No memory and virtually no self-discharge for maximum productivity and less downtime Weighs 2.4-pounds, the same amount as many 18-volt batteries Backed by a 3-year limited warranty