Battery CCA tester: The CCA value is Under low temperature，the current released by the battery for 30 seconds before the voltage drops to the limit feeding voltage.Also can say, in a limited low temperature (normally limited to 0°F or -17.8°C), the amount of current released by the battery for 30 seconds before the voltage drops to the limit feed voltage.The CCA value mainly reflects the instantaneous discharge capacity of the battery, providing a large current to the starter to drive it to move, and then the starter drives the engine to move, and the car starts.This value of CCA often appears in the field of car starter batteries.
Battery capacity tester: The battery capacity means that the battery is discharged at a constant current to the protection voltage (generally 10.8V) of the tester and stops, and the actual capacity of the battery is obtained by using the discharge current multiply by time. The capacity can better reflect the energy storage capacity and long-term discharge capacity of the battery.
In the field of energy storage, the quality of batteries is generally judged by battery capacity as one of the main standard.
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