BATTERY TESTING

Battery testing: this may be carried out in more than one way. The most correct method is dimension of unique gravity and battery voltage. To degree precise gravity, buy a temperature-compensating hydrometer. To measure voltage, use a digital D.C. Voltmeter. A great load tester may be an excellent buy if you want to check sealed batteries.

For any of those strategies, you must first completely fee the battery after which put off the floor price. If the battery has been sitting as a minimum several hours (I opt for at least 12 hours), you can start checking out. To get rid of surface rate, the battery need to be discharged for several mins. The usage of a headlight (high beam) will do the trick. After turning off the light, you’re ready to test the battery.

Nation of rate unique Gravity Voltage

  12V 6V

100% 1.265 12.7 6.Three

seventy five% 1.225 12.Four 6.2

50% 1.190 12.2 6.1

25% 1.155 12.Zero 6.Zero

Discharged 1.120 11.Nine 6.Zero

Load trying out is but some other way of trying out a battery. Load take a look at eliminates amps from a battery much like starting an engine could. A load tester may be purchased at most vehicle components shops. Some battery businesses label their battery with the amp load for trying out. This range is commonly half of the CCA rating. As an example, a 500 CCA battery could load test at 250 amps for 15 seconds. A load take a look at can handiest be carried out if the battery is near or at complete charge.

The consequences of your checking out should be as follows:

Hydrometer readings ought to no longer vary more than .05 variations among cells.

Virtual volt meters should study because the voltage as shown on this document. The sealed AGM and gel mobile battery voltage (completely charged) could be slightly higher inside the 12.8 to twelve.9 range. When you have voltage readings in the 10.Five volt variety on a charged battery, that commonly suggests a shorted cellular.

When you have a preservation-unfastened wet cell, the handiest approaches to test are volt meter and load check. Any of the protection-unfastened batteries that have a built in hydrometer (black/inexperienced window) will let you know the situation of 1 cellular of 6. You could get an amazing analyzing from 1 cell however have a trouble with other cells inside the battery.

While doubtful about battery trying out, name the battery manufacturer. Many batteries bought nowadays have a toll-loose wide variety to call for help.