GR8-1200 OEM
Midtronics Inc. 7000 Monroe Street Willowbrook, IL 60527
www.midtronics.com
6
Non-rechargeable batteries may
burst when charging causing
personal injury and damage.
Only charge rechargeable lead-acid
maintenance-free, low-maintenance or deep-
cycle batteries.
The charger is not intended to supply power to a low-
voltage electrical system other than applications using
rechargeable, lead-acid type batteries. Do not use the
battery charger for charging dry-cell batteries commonly
used with home appliances. These batteries may burst
and cause personal injury and property damage.
2.9
NEVER
charge a frozen battery; thaw it out fi rst.
3 Preparing To Charge The Battery
3.1 If it is necessary to remove the battery from vehicle to
charge it, always remove the grounded terminal from the
battery fi rst. Make sure all accessories in the vehicle are off ,
so as not to cause an arc.
3.2 Be sure the area around the battery is well ventilated while
the battery is being charged. Gas can be forcefully blown
away by using a piece of cardboard or other nonmetallic
material as a fan.
3.3 Clean the battery terminals. Be careful to keep corrosion from
coming into contact with your eyes.
3.4 Add distilled water in each cell until the battery acid
reaches the level specifi ed by the manufacturer. This helps
purge excessive gas from the cells. Do not overfi ll. For a
battery without caps, carefully follow the manufacturer’s
recharging instructions
3.5 Study all battery manufacturer’s specifi c precautions such
as removing or not removing cell caps while charging and
recommended rates of charge.
3.6 Determine the voltage of the battery by referring to the
car owner’s manual and make sure that the output voltage
selector switch is set at the correct voltage. If the charger
has an adjustable charge rate, charge the battery initially
at lowest rate. If the charger has only one voltage, verify
that the battery voltage matches the voltage of charger.
For a charger not having an output voltage selector
switch, determine the voltage of the battery by referring
to car owner’s manual and make sure it matches the
output rating of the battery charger.
4. Grounding & Power Cord Connections
4.1 The charger must be grounded to reduce risk of electric
shock. The charger is equipped with an electric cord hav-
ing an equipment grounding conductor and a ground-
ing plug. The plug must be plugged into an outlet that is
properly installed and grounded in accordance with all lo-
cal codes and ordinances.
Hazardous voltage.
An improper connection can result in
electric shock
To avoid electrical shock or burn, never alter
the charger’s original AC cord and plug. Dis-
connect plug from outlet when charger is idle.
I
F
THE
P
LUG
DOE
S
NOT
F
IT
THE
OUTLET
,
HAVE
A
P
RO
P
ER
OUTLET
IN
S
TALLED
B
Y
A
QUALI
F
IED
ELECTRICIAN
.
4.2 This battery charger is for use on a nominal 120-volt cir-
cuit and has a grounding plug that looks like the plug il-
lustrated in
Figure A
. A temporary adapter, which looks like
the adapter illustrated in
Figures B
and
C
, may be used to
connect this plug to a two-pole receptacle as shown in
Figure B
, if a properly grounded outlet is not available. The
temporary adapter should be used only until a properly
grounded outlet can be installed by a qualifi ed electrician.
Hazardous voltage.
An improper connection can result in
electric shock
Before using an adapter be certain the center
screw of the outlet plate is grounded. The rigid
ear or lug extending from the adapter must be
connected to a properly grounded outlet. Make
certain it is grounded. If necessary, replace the
original screw that secures the adapter ear or
lug to the cover plate and make the ground
connection to the grounded outlet.
U
S
E
O
F
AN
ADA
P
TER
I
S
NOT
ALLOWED
IN
CANADA
.
I
F
A
GROUNDING
-
TY
P
E
RECE
P
TACLE
I
S
NOT
AVAILA
B
LE
,
DO
NOT
U
S
E
THI
S
A
PP
LIANCE
UNTIL
THE
P
RO
P
ER
OUTLET
I
S
IN
S
TALLED
B
Y
A
QUALI
F
IED
ELECTRICIAN
.
4.3 An extension cord should not be used unless absolutely
necessary. Use of an improper extension cord could result
in a risk of fi re and electric shock. If an extension cord must
be used, make sure:
a. that the pins on plugs of the extension cord are the
same number, size, and shape as those of the plug on
the charger;
b. that the extension cord is properly wired and in good
electrical condition;
c. that the wire size is large enough for the AC ampere
rating of charger as specifi ed in the following table.
Safety Instructions
