Battery Charging
Read all instructions before proceeding with the installation of this battery.
The battery is already filled with electrolyte and has been fully charged at the factory. Never pry the caps off or add any other fluid to this battery.
The single most important thing about maintaining the battery is to keep it fully charged. Use a voltmeter to measure DC voltage to determine the battery state of charge.
For a refresh charge, follow all instructions carefully.
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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. A fully charged battery will register 12.6 V or higher.
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If the voltage is less than 12.6 volts, recharge the battery at 2 amps or less until the battery charger indicates charge complete.
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When using an automatic charger, refer to the charger manufacturer's instructions for recharging. When using a constant current charger, use the following guidelines via the table below.
Voltage Table
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% |
12.6-12.8 volts |
Low Maintenance Battery: check after 60 days |
None required |
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 |
At least 20 hours |