General Operation
15
Charging a 12V Flooded or AGM (Absorbed Glass Mat) Lead Acid Battery.
Observe the instructions and safety information of the vehicle to find out how the vehicle
battery should be charged. Modern vehicles are equipped with sensitive electronic parts
and controls that can be damaged if you do not proceed properly.
a) First make sure your battery is a 12 volt flooded or AGM (Absorbed Glass Mat) lead acid
battery. Do not charge batteries with different operating voltages or chemistries.
b) Determine the chemistry of your battery. This should be on the battery or contact the
battery manufacturer. This charger is for flooded and AGM lead acid batteries.
c) If the battery is installed in a vehicle, turn off the ignition and any other loads.
d) When the battery cables are connected per the instructions in this manual, and the
charger is plugged in to AC power (115 V 60 Hz AC), the battery monitor and the
AC power LEDs will illuminate.
e) If the Battery Trouble Status LED is illuminated, unplug AC connection of the charger
from the electric outlet, check to make sure the connections are secure and the polarity
of the cables to the battery is correct. Plug the charger back into the electric outlet. If
the Battery Trouble Status LED continues to illuminate there is a problem with the battery.
f) There will be up to a two minute check process to make sure connections and the battery
are correct, then the charger will start the charge. When the charge cycle starts, the
Charge Monitor LEDs will illuminate letting you know the battery charge level.
g) When all five charge monitor LEDs are illuminated the charge is complete and the charger
can be disconnected first from the AC power then the DC connection removed by first
removing the negative clamp or connection followed by the positive clamp or connection.
h) See typical set up illustrations for in-vehicle and out-of-vehicle set up and use.
General Operation
16
Typical Setup - Charging In-Vehicle - Negative Chassis Ground
WARNING - Read and Follow all INSTRUCTIONS. FAILURE TO FOLLOW INSTRUCTIONS
MAY CAUSE SERIOUS INJURY, DAMAGE OR EXPLOSION, ALWAYS WEAR SAFETY
GLASSES.
Read and follow all General and Personal Safety Precautions in this manual and those
by the battery manufacturer.
Read and follow all the preparing to charge steps for in a vehicle battery charging.
Below please find the typical steps for in a vehicle charging NEGATIVE (NEG, N, – ) chassis
ground vehicles.
a. Connect the red POSITIVE (POS, P, +) cable clamp to the POSITIVE (POS, P, +) post.
b. Connect the BLACK NEGATIVE (NEG, N, –) cable clamp to the vehicle’s chassis.
Do not connect the black negative (NEG, N, –) cable clamp to metal fuel lines or
anywhere in proximity of the carburetor or the battery itself.
c. Plug the charger into a properly grounded fault protected outlet.
