VIDEO GUIDE #2: CHARGING
BATTERY AND CHARGING
Hammer-Head vacuum units do not come with a battery. You must supply your own.
Marine batteries come in standard sizes: 24, 27, 29, 31. The battery box on the cart will hold marine battery sizes up to (group/size/series) 31.
ONLY use 12 volt, deep cycle marine batteries in a Hammer-Head. Do not use car batteries.
DO NOT use a starting battery and avoid batteries advertised as having high “cranking amps”. These batteries will have a CCA number (cold cranking amps) or an MCA number (marine cranking amps). These batteries do not typically have a long lifespan.
GEL batteries are recommended for best performance.
DAILY charging at 6 to 12 amps is required for a minimum of 8 hours to fully recharge your battery.
NEVER use a trickle charger or any charger that charges at a rate less than 6 amps during its charge cycle.
BEWARE of chargers that have a high advertised charging amperage but only do so for a small part of the charge cycle.
SMART chargers (charges that will not overcharge your battery) are recommended as they will always charge at a safe and practical rate.
