Schumacher Proseries PSC-12500A - Manual (Page 9)

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system should charge the battery back to normal during that period. If the vehicle will
only be operated for a short period (short drive), the battery might need to be charged
again before it could start the vehicle again.
• Completing an interrupted charge – Once the battery has reached 85% charge, if the
charging process is interrupted and restarted, the charger could go straight into Maintain
Mode. However, if the original charge was started using the 15◄►40A rate, the charge
can often be completed using the 2A rate.
12. MAINTENANCE INSTRUCTIONS
12.1 Before performing maintenance, unplug and disconnect the battery charger
(see Sections 6, 7 and 8).
12.2 After use, unplug the charger and use a dry cloth to wipe all battery corrosion and other
dirt or oil from the terminals, cords, and the charger case.
12.3 Servicing does not require opening the unit, as there are no user-serviceable parts.
13. STORAGE INSTRUCTIONS
13.1 Store the charger unplugged, in an upright position. The cord will still conduct electricity
until it is unplugged from the outlet.
13.2 Store inside, in a cool, dry place (unless you’re using an on-board Marine Charger).
13.3 Do not store the clips on the handle, clipped together, on or around metal, or clipped to cables.
14. TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE REASON/SOLUTION
The charger is
making an audible
clicking sound.
Circuit breaker is cycling.
Battery is defective.
Shorted battery cables or clips.
Severely discharged battery, but
otherwise it is a good battery.
Reverse connections at battery.
The settings may be wrong.
Check the charger settings.
Have the battery checked.
Circuit breaker is cycling. Check
for shorted cables or clips and
replace if necessary.
Allow charging to continue until
battery has a chance to recover
sufficiently to take a charge.
If more than 20 minutes, stop
charging and have the battery
checked.
Shut the charger off and correct
the lead connections.
Charger makes a loud
buzz or hum.
Transformer laminations vibrate
(buzz).
Shorted Diode Assembly or
Output Rectifier Assembly (hum).
No problem; this is a normal
condition.
Have charger checked by a
qualified technician.