Associated Equipment BCH7109A User Manual download pdf (Page 4)

OPERATING INSTRUCTIONS

CAUTION - This battery charger must be fully assembled before operating. Failure to do so may result in risk of injury.

USE OF THE INSTRUMENT PANEL:

The MINUTES CHARGE timer has an OFF position, a CONTINUOUS CHARGE position and a timed charge range from 0 to 90 minutes.

a. OFF - Always make sure the timer is in the OFF position before connecting or disconnecting the clamps from the battery. The

charger will not charge with the timer in this position.

b. 0 to 90 MINUTES TIMED CHARGE - The timer will automatically turn the charger off at the end of the pre-set charging time. Turn the

timer past 20 before setting the desired time.

c. CONTINUOUS CHARGE - The timer will not shut the charger OFF while in this position. Extended Charging can be done if the

operator is knowledgeable in determining the proper rate and length of charge and monitors the charging process to prevent

overcharging.

TO CHARGE BATTERIES

Make the connections to the battery per the instructions in the previous sections.

Determine if the battery is 6 or 12 volts and then set the CHARGE VOLTAGE switch to 6/12 LOW CHARGE for a 6 or 12 volt battery. If

higher rate is desired, set at 12 MED. or 12 HIGH. DO NOT

charge a 6 volt battery at setting other than 6/12 low.(Damage may occur to

the battery.) Turn the timer on and the Ammeter will show the amount of current delivered to the battery. Length of charge should be per

the above chart and instructions.

12 VOLT CRANKING ASSIST

Turn off all lights and accessories in the stalled vehicle.

Connect the charger to battery per previous instructions.

Charge the battery on 12HI for at least five minutes before attempting to start the vehicle.

Start the vehicle with the charger connected to the battery. Follow the duty cycle on the unit.

NOTE: Do not crank the engine more than 20 seconds in any five minute period; excessive cranking may overheat and damage the

starter.

If the vehicle fails to start, while waiting for the starter to cool, allow the charger to continue to charge the battery.

Turn the switch to OFF and remove the AC power cord from the electric outlet before disconnecting the DC clamps.

CHARGING SULFATED BATTERIES

If your battery has sat in the discharged state for an extended period of time, it can become SULFATED. This usually is seen as a white

deposit near the top of the battery. The sulfate is formed when a battery with low water levels remains discharged for an extended time.

Sulfated batteries exhibit the characteristic of accepting no charge regardless of the rate of charge.

The charging method is two staged. The first stage of attempting to break down the sulfation to allow the battery to accept a charge must

be closely watched to avoid excessive charge rates as the battery begins to charge and overheating. The second stage is a slow

charging to restore the battery to full charge.

READ AND FOLLOW ALL PRECAUTIONS AND WARNINGS IN YOUR INSTRUCTION MANUAL BEFORE ATTEMPTING TO CHARGE

SULFATED BATTERIES. FAILURE TO OBSERVE THESE WARNINGS MAY RESULT IN PROPERTY DAMAGE OR SERIOUS

PERSONAL INJURY OR DEATH.

To recharge a sulfated battery:

1. Attach the battery clamps as described in the instruction manual.

2. Always use the chargers lowest rate when turning the charger on. Set the charger to the chargers highest rate for the voltage of

the battery being charged.

CAUTION: NEVER CHARGE A BATTERY AT VOLTAGES RATES ABOVE THAT OF THE BATTERY.

3. The battery will show little or no amperage at the start of the charging process. This will continue until the sulfation begins to

break down.

CAUTION: AS THE SULFATION BREAKS DOWN, THE AMPERAGE MAY RAPIDLY RISE. CONSTANT

ATTENTION MUST BE OBSERVED TO PREVENT SERIOUS OVERHEATING OF THE

BATTERY.

4. Lower the charge rate to the lowest rate for the voltage of battery being charged.

5. Charge the battery at this low rate until the electrolyte reaches the fully charged state as described in the tables in your

instruction manual. This may take as long as two or three days.

NOTE: SOME BATTERIES MAY BE SO BADLY SULFATED THEY CAN NOT BE RESTORED TO A NORMAL OPERATING

CONDITION, REGARDLESS OF THE RATE OF CHARGE OR THE LENGTH OF TIME THE CHARGE IS APPLIED. IF THE

BATTERY CANNOT BE RESTORED TO A FULLY CHARGED CONDITION BY A SLOW CHARGING, IT SHOULD BE

REPLACED.

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Associated Equipment BCH7109A User Manual Page 4

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