Enerwatt EWC612-200A User Manual page 3

The main function of the timer is to prevent overcharging, while allowing a battery time to obtain a satisfactory charge.
To properly set the timer, you must know the size of the battery (in ampere hours) or reserve capacity (in minutes) and the state
of charge. It is important that you determine the appropriate state of charge of your battery and set the timer accordingly.
Timer switch (Continued)
Hold – This position overrides the timer function, allowing for continuous charging. Be sure to monitor the charging progress
and stop it when the battery is charged. In the hold position, a battery will overcharge if not monitored. This will damage your
battery and may cause property damage or personal injury.
Ammeter
The ammeter indicates the amount of current, measured in amps, that is being drawn by the battery. As a battery takes on a
charges, it draws less current from the charger. As a result, the meter will show less current being drawn by the battery. When
the current stops decreasing, the battery is charged. The start area of the meter indicates a high rate of current being drawn
from the charger. When cranking an engine, the meter needle will be at the extreme right side of the start area. The 2 amp
charge rate may indicate some activity on the meter, but the meter does not have the resolution to display this low rate.
Load tester switch
Use this switch to apply a load to the battery.
Follow these easy steps:
1. Select the correct meter setting ( 6 V or 12 V ) for the battery to be tested.
2. Connect the charger leads to the battery.
3. Press the Load Switch to load on for 10 seconds and read the volt-meter.
Operating instructions
WARNING: A spark near a battery may cause an explosion.
Charging a battery in the vehicle
1. Turn o all of the vehicle's accessories.
2. Keep the hood open.
3. Clean the battery terminals.
4. Set the charge rate switch and the timer to the OFF position.
5. Lay the AC/DC cables out away from any fan blades, belts, pulleys and other moving parts that could cause injury.
6. Connect the battery, following the precautions listed in sections 6 and 7.
7. Connect the charger to an electrical outlet.
8. Select the desired charge rate.
9. Set the timer to the charge time; monitor the charger and the battery.
10. When disconnecting the charger, set the charge rate switch and the timer 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.
Charging a battery outside of the vehicle
1. Place the battery in a well-ventilated area.
2. Set the charge rate switch and the timer to the OFF position.
3. Clean the battery terminals.
4. Connect the battery, following the precautions listed in sections 6 and 7.
5. Connect the charger to the electrical outlet.
6. Select the desired charge rate.
7. Set the timer to the charge time; monitor the charger and the battery.
8. When disconnecting the charger, set the charge rate switch and the timer to the OFF position disconnect the charger
from the AC power, disconnect the negative clamp, and lastly, the positive clamp.
9. A marine (boat) battery must be removed and charged on shore.
Using the engine start function
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.