Sears 28.71234 Battery Charger User Manual


 
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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.
USING THE ENGINE START FEATURE15.
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.
Set the POWER switch to the OFF position. Then follow the instructions 15.1
for connecting the charger to the battery and power source in the section
“Charging a battery in the vehicle.”
Set the BATTERY switch to 6V or 12V to match the battery’s voltage.15.2
Set the POWER switch to the ON position. The METER display will show 15.3
MAN (manual mode).
Touch RESET, MANUAL and ENGINE START pads in that order. Wait for 15.4
the display to show RDY. The charger is now ready to have the engine
cranked.
Crank the engine for 15.5 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.)
During extremely cold weather, or if the battery is severely exhausted, 15.6
charge the battery for about 5 minutes in 60 amp setting before cranking
the engine.
If the engine still does not start, charge the battery for ve more minutes 15.7
before cranking it again for ve seconds.
After the engine starts, unplug the charger power cord from the wall outlet. 15.8
Then move the POWER switch to the OFF position before disconnecting
from the battery.