BATTERIES:
Fully Charged Battery: 12.6v
CCA: Cold Cranking amps
HYDROMETER TESTING:
This the specific gravity test of each of the electrolytes on the battery, if there is more than .50 OR 10% of a difference in the specific gravity reading between the highest reading obtianed and the lowest reading obtained, than the battery is close to death and its recommended to throw it away.
O.C.V TESTING
Open circuit voltage testing is is testing the voltage the battery supplies with the engine switched off, and no components turned on.
LOAD TESTING:
To test if the battery is able to deliver ITS rated CCA in 15 seconds without the voltage dropping below 9.5 VOLTS.
Before starting this test, the battery must be MORE then 50% CHARGE.
CONCLUSION
The Nissan Pulsar in which I did the battery test on failed because the specific variation of two cells was more then 50.
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