Sears 28.71234 Charger Setting Hours, Example, Using the engine start feature

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will be charged to 100 percent needs another 50 percent (.50)).

• Multiply the Amp Hour rating by the charge needed (.50) and divide by the charger setting (2 or 10 amps).

• Multiply the result by 1.25 and you’ll have the approximate time needed, in hours, to bring the battery to full charge.

Add one additional hour for a deep-cycle battery.

Example:

Amp Hour Rating x charge needed x

1.25

=

hours of

Charger Setting

 

 

charge

100 (AH Rating) x .50 (charge needed) x

1.25

=

6.25

50 (Charger Setting)

 

 

hours

100 x .50 = 1.25 x 1.25 = 1.5625

50

You will need to charge your 100-Ampere Hour Battery for approximately 1 1/2 hours at the 50-Amp charge rate using the above example.

15.using the engine start feature

Your battery charger can be used to jump‑start your car if the battery is low. Follow these instructions when using the ENGINE START feature.

15.1Set the POWER switch to the OFF position. Then follow the instructions for connecting the charger to the battery and power source in the section “Charging a battery in the vehicle.”

15.2Set the BATTERY switch to 6V or 12V to match the battery’s voltage.

15.3Set the POWER switch to the ON position. The METER display will show

MAN (manual mode).

15.4Touch RESET, MANUAL and ENGINE START pads in that order. Wait for the display to show RDY. The charger is now ready to have the engine cranked.

15.5Crank the engine for no more than 5 seconds. If it does not start, wait 3 minutes. (The display will show WAIT during this time and RDY when the time is up.)

15.6During extremely cold weather, or if the battery is severely exhausted, charge the battery for about 5 minutes in 60 amp setting before cranking the engine.

15.7If the engine still does not start, charge the battery for five more minutes before cranking it again for five seconds.

15.8After the engine starts, unplug the charger power cord from the wall outlet.

Then move the POWER switch to the OFF position before disconnecting from the battery.

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Contents OPERATOR’S Manual Table of Contents Important Safety Instructions Personal Precautions Preparing to ChargeDC Connection Precautions Follow These Steps When Battery is Installed in ve- hicleCharger Location Page Page Grounding Methods Replacement Parts List DieHard Description Part Number PartsCharger features Assembly instructions Parts Tools NeededTo attach the axle assembly Page Power ON/OFF Switch Using the gfci outletSetting the Controls Battery Voltage SelectMaximum SettingsRate Time IncrementCharger is in Manual mode Charge Rate in ampsVoltage There is a problem with the battery or connections Battery is charged Automatic modeTimer mode Engine StartCharge Rate Battery SIZE/RATING Charging Time Hours AMP Amp Hours = Reserve Capacity +Specific Gravity Percent of Charge Needed Using the engine start feature Charger SettingCharger Setting Hours ExampleMaintenance instructions Storage instructionsTroubleshooting Problem Possible Cause SOLUTION/REASONSWarranty THREE-YEAR Full WarrantyPage