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Battery Charging (Sealed Battery)
For a refresh charge, follow all instructions carefully.
1. Check the battery voltage with a voltmeter or multimeter. A fully
charged battery will register 12.8 V or higher.
2. If the voltage is less than 12.8 volts, recharge the battery at 1.2 amps
or less until battery voltage is 12.8 or greater.
3. When using an automatic charger, refer to the charger manufac-
turer's instructions for recharging. When using a constant current
charger, use the following guidelines for recharging.
An overheated battery may explode, causing severe injury or death. Always
watch charging times carefully. Stop charging if the battery becomes very warm
to the touch. Allow it to cool before resuming charging.
Always verify battery condition before and 1-2 hours after the end of
(Using constant current
charger @ standard amps
specified on top of battery)
100% 12.8-13.0 volts None, check at 3
mos. from date of
75%-100% 12.5-12.8 volts May need slight
charge, if no
check in 3 months
50%-75% 12.0-12.5 volts Needs charge 5-11 hours
25%-50% 11.5-12.0 volts Needs charge At least 13 hours,
verify state of charge
0%-25% 11.5 volts or less Needs charge with
At least 20 hours