Midtronics GR1-120 User Manual

3. JUMP START VEHICLE
3.1 CONNECT THE CHARGER TO THE BATTERY
Important: Before connecting the clamps to the battery,
turn the power switch to the OFF position and disconnect
the AC power cord from the electrical outlet
Connect the charging clamps to the battery in
accordance with all precautions and safety instructions
Do not connect either clamp to the vehicle chassis.
3.2 CONNECT TO AC POWER
Plug the charger into a dedicated, grounded 15-amp AC
outlet. Press the power switch to the ON position.
If the clamps are not making good contact to the battery
posts, the charger will ask you to check the connection.
Make sure that both jaws of the charging clamp come in
good contact with the connection point. Check Clamp
Connections will remain on the display as long as half of
one clamp is not making good contact.
If you accidentally reverse the clamp connections, the
charger will sound an alarm and display Charger Clamps
Reversed. Press the power switch to the OFF position
and reconnect the clamps.
3.3 SELECT CHARGING MODE
Use the DOWN/UP  
buttons to select Jump Start
Vehicle. Press the ENTER
↵ ↵
↵ ↵
↵ button to continue.
This charging mode makes high output current available
to boost charge an in-vehicle battery as well as assist in
starting the engine.
The charger will analyze the battery and then prompt you
to begin boost charging. Boost charging will improve the
battery’s ability to start the engine in the next step.
The charger will inform you that the battery is being boost
charged. Charging will take less than a minute.
When the charger determines the optimal time to crank
the engine, it will inform you. You can crank the engine for
up to 5 seconds.
The charger will inform you when the jump start function
is complete.
Charger Clamps Reversed
Check Clamp Connections
GR1-120 Charging Modes: Jump Start Vehicle
• 20 •
GR-1 Fast Charger X4.2
(c) Midtronics, Inc. 2004
Mode
↑↓↑↓
↑↓↑↓
↑↓
Jump Start Vehicle
↵↵
↵↵
↵
Press (
↵) ↵)
↵) ↵)
↵) to begin boost
charge
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Boost charging battery,
wait for beep to crank
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*** Crank Engine Now ***
Analyzing Battery

Midtronics GR1-120 Specifications

General

Brand	Midtronics
Model	GR1-120
Category	Battery Charger
Language	English