Features: DC9180 18V XRP Li-Ion Battery Pack is compatible with DEWALT® 18 Volt tools DEWALT® exclusive NANO™-phosphate lithium ion cells offer long battery life & durability: 2,000 recharges Lightweight design- 1.5 lbs; same weight as an 12V NiCd battery No memory & virtually no self-discharge for maximum productivity & less downtime DC9310 Charger Charges all DEWALT® 7.2V - 18V NiCd/NiMH/Li-Ion batteries (except Univolt batteries) so users need only one charger for multiple cordless products Voltage 18 V Features High performance battery pack Compatible with Entire line of DEWALT® 18 Volt tools Shipping Weight 3.3 lbs