Panasonic EY9L52B 18v 2.0Ah Lithium-Ion Battery The Panasonic 18V lithium-ion 2.0Ah battery pack is tough and long lasting. The advanced cobalt technology delivers greater output than other manganese lithium-ion batteries and is less prone to an increase in temperature, resulting in longer battery life. This pack is light weight, compact and easy to attach and detach from the tool body. FEATURES Battery has an 80% charge in 35 minutes and is fully charged in 40 minutes Individual battery cells are independently monitored to ensure optimal discharge control, preventing both overcharging and over discharging SPECIFICATION Voltage: 18V Amp Hours: 2.0Ah Type: li-ion Weight: 0.6kg