Features 5Ah Li-ion Battery big power band up to 200% longer runtime for the same weight. 3 way protection including deep discharge and overload protection, Fast re-charge plus energy saving Up to 1,500 cycles rechargeable through multiplex protection circuit that prevents overload, overcharge and over discharge Specification HiKOKI BSL1850 18V Slide-on Lithium-ion 5.0Ah Brand : HiKOKI Code : BSL1850 Battery Type : 5.0 Ah Li-Ion Slide OnVoltage : 18V Standard Equipment 1x HiKOKI BSL1850 5.0ah Li-ion Battery Warranty   The HiKOKI Heavy Duty Warranty scheme covers cordless and electric power tools. You can register your cordless brushless power tools for an extra 2 years over the automatic 3 years from the heavy duty 3 year warranty. Batteries of 5.0Ah and above are covered, as well as MultiVolt batteries. Online registration is required within 4 weeks of purchase via the HiKOKI Power Tools (UK) Ltd website.