What Is Cca In Battery Testing. A half discharged battery can have a very good CCA reading. 1 Multiply the batterys Ah rating x 3 to find the approximate DIN rating.
Batteries go through rigorous factory tests in cold temperatures to achieve this rating. When car batteries are new they have a quoted cold cranking amp CCA rating. The CCA is about 80 of the CA indicating the battery is 20 less efficient at 0F.
In testing the CCA one must apply a different current discharge to check which amperage is keeping the battery on top of the set voltage while the engine is cold.
In this blog we chat about car battery life CCA and battery manufacturing. You may need to use lead stud adapters for side terminal batteries Failure to repeat this test may result in unnecessary. If you enter the CCA of 409 Amps at 63 F then at 0 F that battery will have CCA is 260 a -365 percent change of the 409 CCA and 260 550 percent of what it should be at 0 F. CCAs are important but they are not the best measure for warmer or Australian conditions.
