MultiVolt 36V/18V 2.5 Ah/5 Ah Lithium-Ion Battery

2.5 Ah When used in 36V5 Ah When used in 18V4 Stage fuel gauge located on the face of the battery to make it easier to monitor the charge statusMultiplex Protection Circuit in the battery communicates with the tool and charger preventing from over-load over-charge and over-discharge