Start/Stop Button; Led Indicators - Napa 90-650 Owner's Manual

RATE SELECTION BUTTON
Use this button to select one of the following:
2<>6A CHARGE/MAINTAIN – For charging small and large batteries. Not recommended for
industrial applications.
40A BOOST – For quickly adding energy to a severely discharged or large capacity battery.
200A ENGINE START (12V) – Provides 200 amps for cranking an engine with a weak or run-down
battery. Always use in combination with a battery.
150A ENGINE START (6V) – Provides 150 amps for cranking an engine with a weak or run-down
battery. Always use in combination with a battery.

START/STOP BUTTON

Press to immediately begin charging your properly connected battery.

LED INDICATORS

CLAMPS REVERSED (red) LED flashing: The connections are reversed.
CHARGING (yellow/orange) LED lit: The charger is charging the battery.
CHARGED/MAINTAINING (green) LED lit: The battery is fully charged and the charger is in maintain
mode.
NOTE: See Operating Instructions for a complete description of the charger modes.
BATTERY TYPE BUTTON
Use this button to select the type of battery.
– Used in cars, trucks and motorcycles, these batteries have vent caps and are often marked "low
maintenance" or "maintenance-free". This type of battery is designed to deliver quick bursts of energy
(such as starting engines) and has a greater plate count. The plates are thinner and have somewhat
different material composition. Standard batteries should not be used for deep-cycle applications.
– The Absorbed Glass Mat construction allows the electrolyte to be suspended in close proximity with the
plate's active material. In theory, this enhances both the discharge and recharge efficiency. The AGM batteries
are a variant of Sealed VRLA (valve regulated lead-acid) batteries. Popular uses include high-performance
engine starting, power sports, deep-cycle, solar and storage batteries.
– The electrolyte in a GEL cell has a silica additive that causes it to set up or stiffen. The recharge
voltages on this type of cell are lower than those for other styles of lead-acid battery. This is probably the
most sensitive cell in terms of adverse reactions to overvoltage charging. Gel batteries are best used in
VERY DEEP cycle application and may last a bit longer in hot weather applications. If the wrong battery
charger is used on a gel cell battery, poor performance and premature failure will result.
11. OPERATING INSTRUCTIONS
WARNING: A SPARK NEAR THE BATTERY MAY CAUSE AN EXPLOSION.
WARNING: When the unit is in either the Boost/Charge or Engine Start mode, the clamps are energized
and will spark if touched together.
CHARGING A BATTERY IN THE VEHICLE
1. Turn off all the vehicle's accessories.
2. Keep the hood open.
3. Clean the battery terminals.
4. Set the ON/OFF switch to the OFF position.
5. Lay the AC/DC cables away from any fan blades, belts, pulleys and other moving parts.
6. Connect the battery, following the precautions listed in sections 6 and 7.
7. Connect the charger to an electrical outlet.
8. With the charger plugged in and connected to the battery of the vehicle, set the ON/OFF switch to the
Boost/Charge/Maintain
9. Select the Charge/Maintain
10. Press the START/STOP button to begin charging.
11. When disconnecting the charger, set the switch to the OFF position, disconnect the charger from the AC
power, remove the clamp from the vehicle chassis, and then remove the clamp from the battery terminal.
position.
rate and the battery type.
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