Specification Model: DC18SF Battery Type: Lithium-Ion Power: 320W Input: 100V-240V / 50-60Hz Output: 14.4V - 18V / 3A*4 Ports USB Ports: Dual 5V/2.1A Compatible with 14.4V-18V Battery Compatible with 14.4V Lithium Battery: BL1415, BL1440, BL1430, BL1450, BL1460, DA340DRF, BDF343, 194065-3, 194066-1Compatible with 18V Lithium Battery: BL1820, BL1820B, BL1830, BL1830B, BL1840, BL1840B, BL1850, BL1850B, BL1860, BL1860B, BL1815, BL1825, BL1835, Bl1845, LXT-400, 194205-3, 194204-5, BL1830B-2, BL1850-2, BL1850B-2