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Sears 200.71210 Calculating charge time, Chart Method, Hydrometer or Electronic Method

Models: 200.71210

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Calculating charge time

The 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 — motorcycles, garden tractors, etc.

— are usually rated in Ampere Hours (AH). For example; 6 to 12 AH, or 12 to 32 AH.

•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 RECOMMENED.

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-percent charge prior to recharging. Add more time for severely discharged batteries.

 

BATTERY SIZE/RATING

 

 

CHARGE RATE/CHARGING TIME - HOURS

 

 

 

2 AMP

10 AMP

 

 

 

 

 

 

SMALL

 

Motorcycle, garden

6

- 12 AH

2 - 4

NR

BATTERIES

 

tractor, etc.

12

- 32 AH

4 - 10

NR

 

 

200

- 315 CCA

40

- 60 RC

11 - 14

2 - 27/8

CAR/TRUCKS

 

315

- 550 CCA

60

- 85 RC

14 -18

27/8 - 33/4

 

 

550

- 1000 CCA

85

-190 RC

18 - 35

33/4 - 7

MARINE/DEEPCYCLE

 

80 RC

18

31/2

 

140 RC

27

51/2

 

 

 

 

 

 

 

 

160 RC

30

6

 

 

 

 

 

 

 

 

 

 

 

180 RC

33

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The Hydrometer or Electronic Method

To find the time needed to fully charge your battery, determine the battery’s charge level with a hydrometer or electronic Percent-of-Charge Tester. The following table will help you convert hydrometer readings to percent of charge values.

SPECIFIC

PERCENT

PERCENT OF

GRAVITY

OF CHARGE

CHARGE NEEDED

 

 

 

1.265

100%

0%

 

 

 

1.225

75%

25%

 

 

 

1.155

25%

75%

 

 

 

1.120

0%

100%

 

 

 

When you know the percent of charge and the Amp Hour (AH) rating of your battery, you can calculate the approximate time needed to bring your battery to a full charge.

To convert Reserve Capacity to Amp Hours, divide Reserve Capacity by 2, and add 16:

Amp Hours = Reserve Capacity + 16

2

To calculate time needed for a charge:

•Find the percent of charge needed. (A battery at 50 percent charge that 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

Charger Settingof charge

100 (AH Rating) x .50 (charge needed) x 1.25 = 6.25

10 (Charger Setting)

hours

100 x .50 = 5 x 1.25 = 6.25

10

You would need to charge your 100-Ampere Hour Bat- tery for approximately 6¼ hours at the 10-Amp charge rate using the above example.

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Sears 210 - Sch 50911/13/95

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Sears 200.71210 owner manual Calculating charge time, Chart Method, Hydrometer or Electronic Method
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200.71210 specifications

The Sears 200.71210 is a versatile and powerful tool designed for a variety of home and professional tasks, particularly in the realm of electrical and electronic repair. Its standout features and innovative technologies make it a preferred choice among DIY enthusiasts and professionals alike.

One of the main characteristics of the Sears 200.71210 is its ergonomic design, which ensures user comfort during prolonged use. The tool is lightweight yet durable, allowing for easy handling while maintaining the necessary strength to perform demanding tasks. The grip is thoughtfully constructed to prevent slippage, which enhances precision and control when working in tight or awkward spaces.

Equipped with a robust digital display, the Sears 200.71210 provides users with clear and accurate readings, promoting efficiency and reducing the margin for error. This feature is particularly invaluable when measuring voltage, current, and resistance, as accurate readings can be the difference between a successful repair and prolonged troubleshooting.

The Sears 200.71210 also includes a range of advanced technologies designed to enhance its functionality. One of the most notable is its auto-ranging capability, which automatically adjusts measurement scales based on the detected values, saving users the hassle of manually selecting the correct range. This feature makes it suitable for both beginners and seasoned professionals, as it simplifies the measurement process.

Additionally, this tool boasts a variety of measurement functions. It can handle AC and DC voltage measurements, current measurements, resistance checks, and even continuity tests. This multifunctionality makes it an invaluable asset for a diverse array of projects, from household electrical repairs to more complex electronic diagnostics.

Safety is another critical aspect of the Sears 200.71210. It is designed with built-in protective features to prevent overloads, ensuring the longevity of the tool while safeguarding the user. The device typically incorporates a fuse that protects sensitive components from spikes in voltage, making it a reliable option in various working conditions.

In summary, the Sears 200.71210 stands out for its ergonomic design, advanced digital display, auto-ranging capabilities, multifunctionality, and safety features. Whether tackling home improvement projects or professional electrical work, the Sears 200.71210 provides the reliability and efficiency that users expect from a trusted brand.