11
EEBC300A
Operating Instructions
Example:
A battery is determined to be medium capacity since its
CCA rating is 405 and Reserve Capacity is 90 minutes.
Open circuit voltage test shows 12.1 volts, indicating
about a 50% charge. Five minutes after the charger is
powered up, charging current is 20 amps. Therefore,
battery should be charged for 60 to 90 minutes, as
shown on the chart.
11. Set required charge time on Length of Charge Timer. If
charge time exceeds 120 minutes, perform one of
following.
—
Set Length of Charge Timer for any portion of total
charge time. Reset timer for remaining time when
charge time ends.
—
Reset Length of Charge Timer at any time to extend
amount of charge time until total time required is
reached.
—
Set Length of Charge Timer to HOLD and manually
turn charger off when required time is reached.
Charger does not turn off automatically.
Overcharging can damage battery.
12. Periodically monitor state of charge to prevent
overcharging, especially near end of charge period.
Battery is completely charged when specific gravity
and/or charging voltage do not increase after two hours.
Charging More than One Battery
Passenger vehicles and light trucks with diesel engines may use
two batteries. Heavy-duty trucks, special service vehicles, some
agricultural and industrial equipment may use two or more
batteries. Charge multiple batteries up to 24 volts.
Batteries may be charged in a group if:
• Wired in parallel with the positive terminal of one battery
connected to the positive terminal of the remaining
battery(ies) and the negative terminals connected to negative
terminals.
✓
✓
✓
✓
Charging time is twice as long for a group of batteries
wired in parallel as a single battery.
• Wired in series with the positive terminal connected to
negative terminal between batteries; and the voltage of all
batteries combined is 12 volts, i.e. two 6 volt batteries.
✓
✓
✓
✓
If one battery of a parallel or series group is charged and
another is discharged, isolate the battery(ies) and charge
separately.
