Sodium Na ion car starting battery 20C 30C 12V 57.2Ah 800 CCA
| Category | Parameter | Specification |
| Cell | Model | 18650-1.3Ah |
| Capacity | 1.3Ah | |
| Rated Voltage | 3.0V | |
| Internal Resistance | ≤20mΩ | |
| Combination Standard | A. Capacity Differences: 1% B. Resistance: 1～3 mΩ C. Current-maintaining Ability: ≥90% D. Voltage: 2.5～2.8V |
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| Combination Method | 4S44P | |
| Electrical Characteristics | Nominal Voltage | 12V |
| Nominal Capacity | 57.2Ah | |
| Energy | 686.4Wh | |
| Internal Resistance | ≤10mΩ | |
| Cycle Life | >3000 cycles @1C 70%DOD | |
| Months Self Discharge | <3% | |
| Efficiency of Discharge | 96~99% @1C | |
| Standard Charge | Charge Voltage | 14.6V±0.2V |
| Charge Mode | 1.0C to 14.6V, then 14.6V, charge current to 0.02C (CC/CV) | |
| Charge Current | 1C | |
| Max. Charge Current | 57.2A | |
| Standard Discharge | Continuous Current | 85.8A |
| Max. Pulse Current | 1716A 30C peak 5 seconds 20C constant | |
| Discharge Cut-off Voltage | 6.0V | |
| CCA | CCA | 800CCA |
| Environmental | Charge Temperature | -10 ℃ to 45 ℃ (14F to 113F) @60±25% Relative Humidity (0度以下需加热再充电) |
| Discharge Temperature | -40 ℃ to 60 ℃ (-40F to 140F) @60±25% Relative Humidity | |
| Storage Temperature | -10 ℃ to 40 ℃ (14F to 104F) @60±25% Relative Humidity | |
| Water Dust Resistance | IP56 | |
| Mechanical | Plastic Case | ABS |
CCA stands for Cold Cracking Amps,A brand new, fully charged battery that can provide the minimum current value for 30 seconds in a low-temperature environment of 0 degrees Fahrenheit (approximately -17.8 degrees Celsius),
Why is CCA so important?
When the engine starts, it needs a starter motor to drive it to rotate, which consumes a huge amount of current. And in low-temperature environments:
Oil becomes viscous: The oil inside the engine becomes viscous at low temperatures, increasing the engine's running resistance and requiring greater force (torque) to drive the starter motor, thus consuming more current.
Reduced chemical activity of batteries: Low temperatures can slow down the rate of internal chemical reactions in batteries, leading to a decrease in the discharge capacity of the battery itself.
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