HiKOKI BSL36A18X 36v 2.5Ah 18v 5.0Ah Lithium-Ion MULTI VOLT BatteryIntelligent electronics of the HiKOKI BSL36A18X ensures constant communication between tool, battery and charger to prevent overload, overheating, overcharge and overdischarge for longest battery and tool life. Featuring integrated 4-LED display shows remaining battery charge to prevent costly downtime on the job.FEATURES18V 36V Slider MULTI VOLT BatteryAutomatic voltage switching between 36v 2.5Ah and 18v 5.0Ah depending on the voltage of the toolOne battery, two voltages for compatibility with 18v and 36v power toolsIntegrated LED display shows remaining battery chargeSPECIFICATIONBattery Capacity Ah 5.0 - 2.5Battery Voltage V 18 - 36 VBattery Composition Li-ionBattery Charging Time min. 32