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E
J
n
g
Model No.
l
87102
87104
i
87105
s
87106
87120
h
MODEL 87102
This charger will taper its charge as the battery
approaches full charge. Refer to Section L, Time to
Charge to determine how long to charge your battery.
Step 1: Make Connections
Make sure ac power cord is unplugged from wall outlet.
Make proper connections to the battery as explained in
sections F through H.
Step 2: Select Setting
Select the 10 A 12 V AUTO
position if you are charging
large lead acid batteries,
such as those used in
automobiles, boats, trucks,
vans, farm equipment, etc.
Plug the ac power cord into
the wall outlet. The meter will
read up to 15 amps and taper down to 6 or 7 as the
battery reaches full charge. When the battery is fully
charged you must shut off the charger within 2 hours or
overcharging will occur.
Select the 2 A 12 V AUTO position for charging lawn
tractor, motorcycle, snowmobile, or other small batteries.
Plug the 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.
Select the 10 A 6 V position for charging 6 volt batteries
used in automobiles, trucks, and farm equipment. This
setting does not taper and also 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.
MODEL 87104
This charger will taper its charge as the battery
approaches full charge. When the meter is close to zero,
you should stop charging within 24 hours. It will not
automatically stop charging.
Step 1: Make Connections
Make sure ac power cord is unplugged from wall outlet.
Make proper connections to the battery as explained in
sections F through H.
OPERATING INSTRUCTIONS
TABLE OF CONTENTS
Page
Model No.
4
87121
4
87122
4
87128
5
87150
6
87151
SELECT SETTING
OFF
10A
2A
10A
12V
12V
6V
Page
Model No.
6
87302
7
7
8
8
Step 2: Select Setting
Select the 10 A 12 V AUTO
position if you are charging
large lead acid batteries,
such as those used in
automobiles, boats, trucks,
vans, farm equipment, etc.
Plug the ac power cord into
the wall outlet. The meter
will read up to 15 amps and taper down to 0 or 1 as the
battery reaches full charge. When the battery is fully
charged you must shut off the charger within 24 hours or
overcharging will occur.
Select the 2 A 12 V AUTO position for charging lawn
tractor, motorcycle, snowmobile, or other small batteries.
Plug the 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.
Select the 10 A 6 V position for charging 6 volt batteries
used in automobiles, trucks, and farm equipment. This
setting does not taper and also 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.
MODEL 87105
This charger will taper its charge as the battery
approaches full charge. Refer to Section L, Time to
Charge to determine how long to charge your battery.
Step 1: Make Connections
Make sure ac power cord is unplugged from wall outlet.
Make proper connections to the battery as explained in
sections F through H.
Step 2: Select Setting
Select the 55 AMP START
position if you are attempting
to start a car with a weak
battery (12V only). Plug the
ac power cord into the wall
outlet.
Note: For best results,
charge the battery
first for 10–20 minutes using the 10 A 12 V
position before attempting to start the vehicle in
the 55 AMP START position.
Engage the starter for 3–4 seconds; if engine fails to start,
4
Page
9
SELECT SETTING
OFF
10A 2A
10A
12V AUTO
6V MAN.
SELECT SETTING
55 AMP
10A
2A
START
12V
10A
6V
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