How to Identify the Model of a Car Battery?

[AuroraLynn]

Look at the numbers on the battery; these numbers indicate the battery's rated capacity. The rated capacity, also known as the design capacity, is one of the key indicators for evaluating battery performance. Below is relevant information about car batteries: 1. Cold Cranking Amps (CCA): The minimum current that can be obtained under specific conditions at -17.8°C and -28.9°C. This indicator links the battery's starting capability with important variables such as engine displacement, compression ratio, temperature, starting time, the technical state of the engine and electrical system, and the minimum operating voltage for starting and ignition. It refers to the minimum current that a fully charged 12V battery can supply within 30 seconds when its terminal voltage drops to 7.2V. The cold cranking rating provides the total current value. 2. Reserve Capacity: The approximate time a car can operate at night using the battery for ignition and providing minimal circuit load when the charging system is not working. Specifically, it refers to the discharge time of a fully charged 12V battery at 25°C, discharging at a constant current of 25A until the battery's terminal voltage drops to 10.5V.