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BATTERY CHARGING
The following battery charging instructions apply only to the installation of a
sealed battery. Read all instructions before proceeding with the installation of
this battery.
The sealed battery is already filled with electrolyte and has been sealed and fully
charged at the factory. Never pry the sealing strip off or add any other fluid to this
battery.
The single most important thing about maintaining a sealed battery is to keep it
fully charged. Since the battery is sealed and the sealing strip cannot be
removed, you must use a voltmeter or multimeter to measure DC voltage.
WARNING
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.
For a refresh charge, follow all instructions carefully.
1. The battery should be disconnected from a load or charger for at least two
hours before checking voltage. 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 manufacturer's
instructions for recharging. When using a constant current charger, use the
guidelines on the next page for recharging.
BATTERY CHARGING (SEALED BATTERY)
Always verify battery condition before and 1-2 hours after the end of charging.
STATE OF CHARGE VOLTAGE ACTION
CHARGE TIME
(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
manufacture
None required
75%-100% 12.5-12.8 volts May need slight
charge, if no charge
given, check in 3
months
3-6 hours
50%-75% 12.0-12.5 volts Needs charge 5-11 hours
135
MAINTENANCE
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