21V 4000mAh Rechargeable Lithium Ion Battery For Makita Cordless Drill/Brushless Wrench/Screwdriver/Circular Saw

388VF Battery Specification:

Battery Voltage: 18-20V Battery Capacity:4000mAh For Makita Cordless Dirll/Brushless Wrench/Screwdriver/Circular Saw 10 lithium batteries, long-lasting battery life.

100% increase in battery runtime Adapted to 18V Makita battery:

√ compatible for 18V B series lithium battery,such as BL1850B(197285-8),BL1840B(197270-1),BL1830B(197602-2),BL1430B(197618-7),BL1820B(197487-6);

√ compatible for BL1850,BL1840,BL1440(196391-6),BL1415(194560-3),BL1815N(196781-3);

× NOT compatible for G Series battery such as BL1813G(196663-9) BL1413G(196882-7) BL1415G BL1430G BL1815G and so on

× NOT compatible for 18v Ni-CD battery such as 1822(194465-7)