The Makita BL1840B battery is lightweight and shock-absorbing. The Li-ion range delivers 430% more working capacity during it's lifetime compared to Ni-Cad and is 40% Lighter than Ni-MH. The BL1840B includes battery capacity indicator LED's which show you how much power you have left at the touch of a button.

Brand Name	Makita
Manufacturer Model No	MAKBL1840X4
Voltage	18v
Battery Type	Lithium-Ion
Battery Capacity	4.0Ah
Weight	1kg (approx)
Charge Time (DC18SD)	90 mins
Charge Time (DC18RA/DC18RC/DC18RD)	36 mins