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6. If the output is on, press the Start/Stop ( ) button. If the output is
already off, do not press the Start/Stop ( ) button.
7. Read the voltage on the digital display.
General Charging Notes
Fans: The charger is designed to control its cooling fans for efcient
operation. Consequentially, it is normal for the fans to start and stop when
maintaining a fully charged battery Keep the area near the charger clear
of obstructions to allow the fans to operate efciently. NOTE: The charger
has thermal protection, and it will shut down if it gets too hot.
Voltage: The voltage displayed during charging is the charging voltage
and is usually higher than the battery’s resting voltage.
Charging Tips
Read this entire manual before using your battery charger. The following
tips serve only as a guide for specic situations.
If your vehicle won’t start• – You do not need to fully charge a
battery to start your vehicle. When the battery’s charge is 77% or
more, the battery has usually been charged enough for the vehicle
to start and operate normally. If operating the vehicle continuously
for an extended period (such as a long drive), the vehicle’s charging
system should charge the battery back to normal during that period.
If the vehicle will only be operated for a short period (short drive),
the battery might need to be charged again before it could start the
vehicle again.
Completing an interrupted charge• – If the charging process has
been interrupted and restarted, the charger could go straight to
Maintain Mode. However, if the original charge was started using
the 20A or 70A rate, the charge can often be completed using the
4A rate.
CALCULATING CHARGE TIME11.
Use the following table to more accurately determine the time it will take to
bring a battery to full charge. First, identify where your battery ts into the
chart.
Cold cranking amps (CCA) is a measurement of the number of amps a
battery can deliver at 0° F for 30 seconds and not drop below 7.2 volts. So
a high CCA battery rating is good especially in cold weather.
Reserve Capacity (RC) is a very important rating. This is the number of
minutes a fully charged battery at 80° F will discharge 25 amps until the
battery drops below 10.5 volts.
An amp hour (AH) is a rating usually found on deep cycle batteries. If a
battery is rated at 100 amp hours it should deliver 5 amps for 20 hours, 20
amps for 5 hours, etc.
NR means that the charger setting is NOT RECOMMENDED.