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China
Long Term
2021-12-28 11:20
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Address： |
China |
Min.Order： |
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Supply： |
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Valid until： |
Long Term |
Rated Capacity | Minimum 50 ah | Charging: Standard charging Discharge: Standard discharge |
Standard voltage | 3.2V | |
limited charge voltage | 3.70(+0.03 -0.02) | |
End-of-charge Current | 0.02CA | |
Discharge End Voltage | 2.50V | Standard: 2.50 V |
Standard Charging | 0.5Ca (25A) constant current charge to 3.70V,Then charge 3.70V constant voltage to cut-off power flow | |
Standard Discharge | 0.5Ca (25A) constant discharge to the end of discharge Check the voltage | |
Maximum continuous charging current | 1CA(50A) | |
Maximum continuous discharge current | 3CA(150A) | |
Operating temperature and humidity range | Charging temperature: 0℃ ~45℃ Humidity: Less than 85%RH Discharge temperature: -- 20℃ ~ 60℃ Humidity: Less than 85%RH | See Other Charging Conditions for specific charging current |
Storage temperature and humidity range | 1 month -20 ~ 60℃ 3 months -20 ~ 45℃ 1 year -20 ~ 25℃ Less than 85% RH | 50% SOC storage Storage time more than 3 months, need to do A cycle of 100% charge and discharge depth After the loop, the battery continues to store 50% charge |
Weight | 1320±40g | |
Open-circuit voltage | 3.20V±0.10V | Voltmeter, 50% SOC, 25 ± 2℃. |
AC Imp | ≤1mΩ | Internal resistance tester, not less than 1kHz,50% SOC,25 ± 2℃. |
3CA Discharge performance | ≥ rated capacity *90% Charging and discharging curves should be smooth and smooth | After standard charging, the battery will rest for 10min at the ambient temperature of 25℃±2℃ Under the condition of 3CA constant discharge to the termination voltage, check the battery capacity |
High-temperature behavior | Capacity ≥ rated capacity *95% Appearance: no obvious deformation, no broken Crack, no leakage | Measure the initial state and capacity of the battery; After a standard battery charge, Static at (55±2)℃ for 5 hours, at 0.5Ca Discharge to stop voltage, rest at room temperature for 2 hours, measure electricity The final state of the pool |
Cryogenic property | Capacity ≥ rated capacity *70% Appearance: no obvious deformation, no broken Crack, no leakage | Measure the initial state and capacity of the battery. After standard battery charging, Static at (-20±2)℃ for 24 hours, at this condition 1Ca Discharge to 1.5V, rest at room temperature for 2 hours, measure the battery Final state. |
Charge Retention | Remaining capacity ≥ rated capacity *80% Restore capacity ≥ rated capacity *90% | Test the initial capacity of the battery; Then the battery is charged as standard, measured and recorded Record the test state of the battery and place it open circuit at standard atmospheric pressure for 28 days. Measure the battery process state, battery appearance, open circuit voltage, AC inside Resistance, thickness and weight, then at ambient temperature 25 ° C ±2 ° C conditions the battery standard discharge to the termination voltage, measure the remaining capacity of the battery, Restore the capacity and final state |
Cycle life | Capacity ≥ rated capacity *80% | Measure the initial state and capacity of the battery, rest for 10min, and then in the ring The ambient temperature was 25℃±2℃ at 0.5C for 2000 cycles The final state of the battery. |
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