The HiKOKI BSL1850V is an 18v 5.0Ah Li-ion battery, fully compatible with the 18v Li-ion power tool range. The BSL1850Z offers up to 1,500 cycles rechargeable through Multiplex Protection Circuit that prevents over-load, over-charge and over-discharge.

Up to 2 times longer runtime (compared to the BSL1830), with the same size and weight
Fully compatible with 18v li-ion series
Long lifetime