Sears 28.7123 Calculating charge time, Charge Rate, Battery SIZE/RATING Charging Time Hours AMP

Models: 28.7123

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7.After the engine starts, move Output Selector Switch #2 to the OFF position and unplug the A.C. power cord before disconnecting the battery clips from the vehicle.

8.Clean and store the charger in a dry location.

NOTE: If the engine does turn over but never starts, there is not a problem with the starting system; there is a problem somewhere else with the vehicle. STOP cranking the engine until the other problem has been diagnosed and corrected.

12.Calculating charge time

Use the following table to more accurately determine the time it will take to bring a battery to full charge. First, identify where your battery fits into the chart.

NR means that the charger setting is NOT RECOMMENDED.

Find your battery’s rating on the chart below, and note the charge time given for each charger setting. The times given are for batteries with a 50% charge prior to recharging. Add more time for severely discharged batteries.

 

 

 

 

CHARGE RATE/

BATTERY SIZE/RATING

 

CHARGING TIME - HOURS

 

 

 

 

2 AMP

40 AMP

SMALL

Motorcycle,

 

6 - 12 AH

2 - 4

NR

garden, tractor,

 

 

 

 

BATTERIES

 

 

 

 

 

 

 

 

etc.

 

12 - 32 AH

4 - 10

NR

 

 

 

200 - 315 CCA

 

40 - 60 RC

11 - 14

30 to 45 min.

CAR/TRUCKS

315 - 550 CCA

 

60 - 85 RC

14 - 18

45 min - 1

 

hour

 

 

 

 

 

 

550 - 1000 CCA

 

85 - 190 RC

18 - 35

1 - 2 hours

 

 

 

80 RC

18

NR

MARINE/DEEP CYCLE

 

140 RC

27

NR

 

160 RC

30

NR

 

 

 

 

 

 

180 RC

33

NR

13.MAINTENANCE INSTRUCTIONS

13.1After use and before performing maintenance, unplug and disconnect the battery charger (see sections 6, 7 and 8).

13.2Use a dry cloth to wipe all battery corrosion and other dirt or oil from the battery clips, cords, and the charger case.

13.3Ensure that all of the charger components are in place and in good working condition, for example, the plastic boots on the battery clips.

13.4Servicing does not require opening the unit, as there are no user- serviceable parts.

13.5All other servicing should be performed by qualified service personal.

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Sears 28.7123 operating instructions Calculating charge time, Charge Rate, Battery SIZE/RATING Charging Time Hours AMP