CCA refers to the amount of power that a battery can discharge for 30 seconds at 32° F (0° C). It really is the amount of power you need to start your engine on any weather except winter. However, Cold Cranking Amps are used to rate lead-acid battery products' starting performance in cold climate, and we normally won't use it to rate your device, lithium-ion jump starter.
In general, we will use peak current to measure jump starter's performance. Learn more about the peak current:
The Peak Current of jump starter:
|Alpha 85S||Alpha 100|
|Peak Current||2000 Amps||2000 Amps||4000 Amps|
|30 Milliseconds||50 Milliseconds|
Note: The rate peak current is lab results, which may vary depending on the testing equipments and environmental temperature.