KingCraft VEC072A - Troubleshooting Slow Charge Rates; Addressing Very Cold Batteries; Troubleshooting Sulfated Batteries; Troubleshooting: Battery Not Accepting Charge

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TROUBLESHOOTING SLOW RATES OF CHARGE
Very Cold Battery
If the battery to be charged is extremely cold (in temperatures less than freezing - 0ºC/32ºF) it cannot accept
a high rate of charge, so the initial charge rate will be slow. The rate of charge will increase as the battery
warms.
Sulfated Battery
When batteries are left in a discharged state for a long period of time, they become "sulfated". Sulfated
batteries cannot accept a high rate of charge since the internal plates are coated with lead sulphate. To see if
a battery in this condition can be "saved", take it to a service station or battery distributor for professional
evaluation and/or service.
• Using a voltmeter, determine the voltage of the battery and if it is under 12 volts, the battery is probably
beyond repair or recharging, and will need to be replaced.
• If the voltage is over 12 volts, reconnect the charger and resume the charging process for another 15-20
minutes. After that time, repeat the voltmeter test. If the reading is still over 12 volts, there is a problem with
the battery that requires professional service or replacement.
BATTERY IS NOT ACCEPTING CHARGE
• First, make sure that battery is capable of being charged - ensure that it is not sulfated or damaged
•
Refer to Charging Times and Appendix A to ensure that enough time is being allowed to charge the battery
NO CHARGER OPERATION
• Make sure that the charger is plugged into a "live" 110/120 volt AC and switch is set to 6A or 2A
• Make sure battery connection polarity is correct, see Reverse Connection LED
• Unplug charger and check battery connections - ensure that there is a good connection with the battery
terminal and/or vehicle chassis
• Check to be sure that the battery is not sulfated
• Check that the correct charge rate has been selected for the battery being charged
• Ensure that enough charging time has been allowed for - check Charging Times and Appendix A for
approximate charging times
• See Pre-charge Battery Activation
• Make sure the Selector Switch is not OFF