Boost Mode - Napa 90-650 Owner's Manual

CHARGING A BATTERY OUTSIDE OF THE VEHICLE
1. Place battery in a well-ventilated area.
2. Clean the battery terminals.
3. Set the ON/OFF switch to the OFF position.
4. Connect the battery, as described in section 7.
5. Connect the charger to an electrical outlet.
6. With the charger plugged in and connected to the battery, set the ON/OFF switch to the Boost/Charge/
Maintain position.
7. Select the Charge/Maintain
8. Press the START/STOP button to begin charging.
9. When disconnecting the charger, set the ON/OFF switch to the OFF position, disconnect the charger
from the AC power, disconnect the negative clamp, and finally the positive clamp.
10. A marine (boat) battery must be removed and charged on shore.

BOOST MODE

NOTE: The unit will automatically switch to Boost mode, depending on the voltage. To select the Charge/
Maintain mode, press the Rate Selection
While in Boost mode, the display will show BOOST ON. If a bad battery is detected, BAD BATTERY will be
shown on the display.
NOTE: Boost mode will remain energized until the START/STOP button is pressed or the main ON/OFF
switch is set to the OFF position.
CHARGE/MAINTAIN MODE
To select this mode, press the Rate Selection
lights. The display will show the charger voltage. To change the mode on the display, press the Display
button. When the battery is fully charged, the green Charged/Maintaining
charging cannot be completed, BAD BATTERY will be shown on the display. The battery may be bad;
have it checked.
NOTE: If voltage of battery is under 12.8V, charger will automatically go into Boost mode to quickly add
energy to the battery. To abort/skip the temporary Boost and force the charger into the Charge/Maintain
mode, press the Rate Selection
USING THE ENGINE START FEATURE
Your battery charger can be used to jump start your car if the battery is low. Follow all safety instructions
and precautions for charging your battery. Wear complete eye protection and protective clothing.
WARNING: Using the Engine Start feature WITHOUT a battery installed in the vehicle will damage the
vehicle's electrical system.
NOTE: If you have charged the battery and it still will not start your car, do not use the Engine Start
feature, or it could damage the vehicle's electrical system. Have the battery checked.
1. Set the switch to the OFF position.
2. With the charger unplugged from the AC outlet, connect the charger to the battery following the
instructions given in the Follow These Steps When Battery Is Installed In Vehicle section.
3. Plug the charger AC power cord into the AC outlet.
4. With the charger plugged in and connected to the battery of the vehicle, set the ON/OFF switch to
the Engine Start
activate. If the battery is properly connected, the display will show ENGINE START ON for the first 2
minutes and then the display will show READY. If display shows 0.0V , check the battery connections.
5. When the display shows READY, crank the engine until it starts or 5 seconds pass. If the engine does
not start, wait a few minutes before cranking again. This allows the charger and battery to cool down.
NOTE: During extremely cold weather, or if the battery is under 2 volts, boost the battery for 5 minutes
before cranking the engine.
rate and the battery type.
button again (while still boosting).
position and select either the 200A/12V or 150A/6V rate. Press START/STOP to
button.
button until the green 2<>6A Charge/Maintain
• 5 •
LED
LED will light. If