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130 MAINTENANCE Battery Battery Charging 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 the battery voltage is 12.8 or greater. Tip: When using an automatic charger, refer to the charger manufacturer's instructions for recharging. When using a constant current charger, use the WARNING! An overheated battery may explode, causing severe injury or Tip: Always verify battery condition before and 1-2 hours after the end of charg- ing. 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 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 desulfating charger At least 20 hours |