Voltage: 20V With 1pcs lithium-ion battery pack(FBLI20021) With 1pcs charger(FCLI2001) Lithium-ion battery pack(FBLI20021): Lithium-ion 4.0Ah battery LED battery power indicator One battery fits all P20S multiple tools Fast intelligent charger(FCLI2001): IVnopulttavgoelta: g2e0:2V20-240V~50/60Hz