For charging lawn tractor, motorcycle,
snowmobile, or other small batteries,
select the 2 A, 12 V AUTO position.
Connect the charger to the battery as
indicated in the preceding sections
CHARGING A BATTERY THAT IS
INSTALLED IN A VEHICLE or
CHARGING A BATTERY OUTSIDE A
VEHICLE. Plug the charger's AC
power cord into the wall outlet. The
meter will read up to 5 amps and
taper down to around 1 amp as the
battery reaches full charge. Using this
setting for large automotive, truck, or
marine batteries will not allow the
charger to shut off automatically.
For charging 6 volt batteries used in
automobiles, trucks, and farm
equipment, select the 15 A, 6 V
position. Connect the charger to the
battery as indicated in the preceding
sections CHARGING A BATTERY
THAT IS INSTALLED IN A VEHICLE
or CHARGING A BATTERY OUTSIDE
A VEHICLE. Plug the charger's AC
power cord into the wall outlet. This
setting does not taper and does not
shut off automatically.
Note: Do not use this battery charger
to charge batteries larger than
those typically found in boats,
passenger cars, or light trucks.
Preactivation of a
Discharged Battery
Preactivation will raise the voltage in a
12 volt battery to a level high enough
to allow the charger to operate in the
automatic mode. This step is required
if you have been attempting to charge
a low or dead battery and the battery
has not been accepting any charge.
• Select the START position on the
SELECT FUNCTION switch.
• Select the highest charging position
on the SELECT SETTING switch.
(Not the Start setting.)
• Charge the 12 volt battery for 5 to
15 minutes.
• Select the CHARGE position on the
SELECT FUNCTION switch.
The battery should now accept the
charge and the amperage meter
should indicate 6 to 15 amps. If not,
the battery should be professionally
tested. If battery is okay, call Griot's
Garage at (800) 345-5789.
7
READING THE METER
The ammeter built into this charger
indicates the amperage that the battery
is drawing from the charger. The meter
may read up to 15 amps if the battery is
discharged and the charger is set on the
12 volt, 15 amp setting. As the battery
charges, the meter will taper back to
around 7 amps. This charger, equipped
with Automatic On-Off Technology, will
drop to zero amps and the CHARGE
COMPLETE light will come on when the
battery is fully charged. On the 12 volt, 2
amp setting the meter may read up to 5
amps for a discharged battery and taper
down to about 1 amp as it charges.
The 6 volt setting is a constant current
setting and the needle will not move
from right to left.
The BATTERY area in red at the top of
the meter should not be used as a
precise measurement of the battery’s
percent of charge. There are differences
from battery to battery that prevent it
from accurately representing the actual
percent of charge.
The charger will show 100% when
fully charged.
