If using a constant current charger (instead of BatteryMINDer® 2012 AGM - 2
AMP charger), use the guidelines below. Always verify battery condition before
and 1-2 hours after the end of charging.
State of Charge Voltage (DC)
Action
Charge Time*
100% 12.8-13.0 volts None, check
monthly
None required
75%-100% 12.6-12.8 volts May need slight
charge, if no charge
given, check in 2
weeks
3-6 hours
50%-75% 12.3-12.6 volts Needs charge 5-11 hours
25%-50% 12.0-12.3 volts Needs charge At least 13 hours
0%-25% 12.0 volts or less Needs charge At least 20 hours
* Using AGM specific charger at standard amps specified on top of battery
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MAINTENANCE