Sears 200.71991 operating instructions Calculating charge time Chart Method

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IMPORTANT: Using the ENGINE START feature WITHOUT a battery installed in the vehicle could cause damage to the vehicle’s electrical system.

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.

13.calculating charge time

13.1The Chart Method

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.

Small batteries – motorcycle, garden tractors, etc. – are usually rated in

Ampere Hours (AH). For example: 6, 12, 32 AH etc.

Batteries in cars and smaller trucks are usually rated in Reserve Capacity

(RC), Cold-Cranking Amps (CCA), or both.

Marine or deep-cycle batteries are usually rated in Reserve Capacity

(RC).

NR means that the charger setting is NOT RECOMMENDED.

Find your batteries rating on the chart below and note the charge time given for each charger setting. The times given are for batteries with a 50-percent charge prior to recharging. Add more time for severely dis- charged batteries.

 

 

 

CHARGE RATE/

 

 

BATTERY SIZE/RATING

CHARGING TIME - HOURS

 

 

 

 

4 AMP

20 AMP

40 AMP

70 AMP

SMALL

Motorcycle, gar-

6 - 12 AH

2 - 4

NR

NR

NR

 

 

 

 

 

BATTERIES

den, tractor, etc.

12 - 32 AH

4 - 10

NR

NR

NR

 

 

 

 

 

 

 

 

 

 

200 - 315 CCA

40 - 60 RC

11 - 14

60 - 90

30 - 40

20 - 30

 

min.

min.

min.

 

 

 

 

CAR/

315 - 550 CCA

60 - 85 RC

14 - 18

90 - 120

45 min -

30 - 40

TRUCKS

min.

1 hr

min.

 

 

 

 

550 - 1000 CCA

85 - 190 RC

18 - 35

2 - 3.5

1 - 2 hr

45 - 60

 

hrs.

min.

 

 

 

 

 

 

 

80 RC

18

105 min.

1 hr

NR

 

 

 

 

 

 

 

 

 

140 RC

27

2 hrs., 45

1 hr and

NR

 

 

min.

15 min

MARINE/DEEP CYCLE

 

 

 

160 RC

30

3 hrs.

1.5 hrs

NR

 

 

 

 

 

 

 

 

 

 

 

180 RC

33

3.5 hrs.

2 hrs

NR

 

 

 

 

 

 

 

12

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Contents OPERATOR’S Manual Page Table of Contents Important Safety Instructions Page DC Connection Precautions Preparing to ChargeCharger Location Follow These Steps When Battery is Installed in ve- hicle Page Battery charging ac connections Grounding Methods Tools Needed TimerWheel QTY DescriptionPage Operating instructions Timer AMP Rate Selector SwitchHold Ammeter VoltmeterEngine start Charge Rate Battery SIZE/RATING Charging Time Hours AMP Calculating charge time Chart MethodExample Hydrometer or Electronic MethodSpecific Gravity Percent of Charge Needed To calculate time needed for a chargeStorage instructions Maintenance instructionsProblem Possible Cause SOLUTION/REASONS TroubleshootingProblem Possible Cause SOLUTION/REASONS