How Many Volts Is A Harley Battery. ~ matt couchman law abiding biker™ team. The complete battery specs for a harley davidson battery is 12v, 19 amp per hour and 270 cca.

The volts should not drop below 9.6 volts when the starter engages. A ‘6v’ battery is comprised of three cells giving a total voltage across it’s terminals of 3 x 2.1v = 6.3 volts. In terms of charging current, this is typically 1.25 amperes, and it takes up to 8 hours to fully charge the harley davidson stock battery.