Sears 200.713121 owner manual Calculating Charge Time, Cca Amp

CALCULATING CHARGE TIME

Battery Rating Method

Use the following table to more accurately determine the time it will take to fully charge a battery that is initially at 50% State-of-Charge. Identify your battery type and its associated Charge Time in the table. Common battery types are:

•Small batteries, motorcycles, garden tractors, etc., are usually rated in Amp-Hours (AH).

•Car and truck batteries, usually rated in Reserve Capacity (RC), Cold Cranking Amps (CCA), or both.

•Marine, or deep cycle batteries, usually rated in either Amp-Hours or Reserve Capacity (RC).

Charge Time Table for Batteries at 50% State-of-Charge

Battery		Battery Rating			Charge-Time (Hours)
Type	AH		RC	CCA	2 AMP	12 AMP	75 AMP
Motorcycle	6 - 12				2 - 4	NA	NA
and tractor
	12 - 32				4 - 10	NA	NA
Car and			40 - 60	200 - 315	8 - 11	1 - 2	NA
			60 - 85	315 - 550	11 - 16	2 - 3	NA
Truck
			85 -190	550 - 1000	16 - 35	3 - 5¾	NA
	40		80		15	2½	NA
Marine and	80		140		26	4½	NA
Deep Cycle	95		160		30	5	NA
	105		180		33	5½	NA
NA = Not Allowed. DO NOT charge at this setting

Voltmeter Method

To find the time needed to fully charge your battery, determine the battery’s charge level with a voltmeter or electronic State-of-Charge Tester. Use the table below to convert Voltmeter and State-of-Charge readings at room temperature to the appropriate Charge Factor. Then use the formulas that follow the table to determine the approximate Charge Time.

Charge Factor Table

Voltmeter Reading		State-of-Charge
12 Volt Battery	6 Volt Battery	Reading	Charge Factor
12.67	6.34	100%	0
12.45	6.22	75%	0.25
12.25	6.12	50%	0.50
12.06	6.03	25%	0.75
11.86	5.93	0%	1

SAFETY

OPERATION MAINTENANCE TROUBLESHOOTING

PARTS

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