Hitachi BSL1850 18V Lithium-Ion Battery 5.0 Ah BSL1850 are compatible with every Hitachi 18V slide type cordless tool with a huge increase in power but no gain in weight.
Features: Full compatibility with Hitachi's 18V slide Li-ion tools 5 Ah Li-ion Battery big power band up to 200% longer runtime for the same weight. 3 way protection including deep discharge & overload protection, Fast re-charge plus energy saving Up to 1, 500 cycles rechargeable through multiplex protection circuit that prevents overload, overcharge & over discharge Voltage: 18V Battery type: Li-ion, Slide Capacity: 5.0 Ah Weight: 0.6kg