If the open circuit voltage drops below 12 4 volt the battery needs to be recharged.
Car battery cca test results.
Cold cranking amps is a rating applied to car batteries expressing how much electricity flows from them at 0 f.
The cold cranking amps rating for example 650 cca is an industry standard measure of how much electrical power a battery can provide at zero degrees fahrenheit.
Test cold cranking amps.
A fully charged starter battery has a voltage of 12 8 volt.
A battery load tester is a device used for testing the condition of a battery including the analysis of the cca capacity of the battery.
Anything below that should be recharged and tested with professional test equipment.
As the cca rating increases it indicates a higher powered battery.
If your battery is greater than 12 45 volts it is sufficiently charged.
Battery voltage will change 01 volts for every 10 degree change in temperature.
A state of charge test does not indicate whether your battery is good.
Never confuse this rating with cranking amps ca a rating based on an easier test that produces inflated numbers.
To test the cca capacity of a battery using a load tester the battery must have at least 70 to 100 state of charge.
1 cold cranking amps cca cold cranking amps cca is the recognized industry standard for rating a battery s performance.
Switch your battery tester to cca cold cranking amps mode.
The battery test for an agm or efb battery is more extensive as the demands on these special battery technologies are more complex.
This information can help you estimate the residual service life of your battery.
Your battery s cca rating is probably written on its casing.
Input your battery s cca rating number into your tester.