Schumacher Electric Napa 90-300A Owner's Manual page 11

6. Connect the charger to a live grounded 120V AC outlet.
7. When charging is complete, disconnect the charger from the AC power,
disconnect the negative ring terminal, and finally the positive ring terminal.
8. A marine (boat) battery must be removed and charged on shore.
BATTERY CHARGING TIMES
BATTERY SIZE/RATING
SMALL BATTERIES
Motorcycle, garden tractor, etc.
CARS AND TRUCKS
MARINE/DEEP-CYCLE
Times are based on a 50% discharged battery and may change, depending on
age and condition of battery.
AUTOMATIC CHARGING MODE
When an automatic charge is performed, the charger switches to the maintain
mode automatically after the battery is charged. For a battery with a starting
voltage under 1 volt, use a manual charger to pre-charge the battery for five
minutes, to get additional voltage into the battery.
BAD BATTERY
If charging cannot be completed normally, the charger's output is shut off and the
RED LED will flash. Have the battery checked and replace, if necessary.
DESULFATION MODE
If the battery is left discharged for an extended period of time, it could become sulfated
and not accept a normal charge. If the charger detects a sulfated battery, the charger
will switch to a special mode of operation designed for such batteries. If successful,
normal charging will resume after the battery is desulfated. Desulfation could take
8-10 hours. If desulfation fails, the RED LED will flash.
COMPLETION OF CHARGE
Charge completion is indicated by the GREEN LED. When solid, the charger has
switched to the maintain mode of operation.
200-315 CCA
315-550 CCA
550-1000 CCA 85-190 RC
• 11 •
CHARGE TIME
6-12 Ah
12-32 Ah
40-60 RC MAINTAIN ONLY
60-85 RC MAINTAIN ONLY
MAINTAIN ONLY
80 RC MAINTAIN ONLY
140 RC MAINTAIN ONLY
160 RC MAINTAIN ONLY
180 RC MAINTAIN ONLY
(1.5A)
2½-5 h
5-13¼ h