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| Type: | Li-ion Battery |
| Cathode Material: | NCM |
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No | Item | Rated parameters | Remark | |
1 | Rated Capacity | 7340mAh | Charge/discharge at 0.2C under a temperature of 25±2℃ | |
Min Capacity | 7200mAh | |||
2 | Rated Voltage | 3.7V | ||
3 | Charging cut-off voltage | 4.2V | Constant Voltage Charging | |
4 | Discharging cut-off voltage | 3V | ||
5 | Standard Charging Current | 1470mA(0.2C) | Maximum charging current3 6 70m A(0.5C) | |
6 | Standard Discharging Current | 1470mA(0.2C) | ||
Max Discharging Current | 5000mA | |||
7 | Condition to stop charging | ≤150mA | After holding for 1 minute | |
8 | Using temperature | Charge 0~45℃ | Relative humidity45%~85% | |
Discharging-20~60℃ | ||||
9 | Storage Temp | 1Month | -5~45℃ | During storage, it should be kept in a clean, dry, and well-ventilated indoor environment where the ambient humidity does not exceed 45%. It should be avoided to come into contact with corrosive substances and kept away fromfire sources and heat sources. The battery must be charged and discharged once every 6 months and recharged to 50%~70% of its relative capacity. |
3Months | -5~35℃ | |||
6Months | 0~35℃ | |||
10 | Open-circuit voltage | About 3.7V | At 25±2℃ working temp, drained completely, 0.5C fast charge to 1hrs and measurement | |
11 | Cycle life | ≥75% after 500 cycle times | At 25±2℃ operation temp, 500 times charging and discharging cycle Charging voltage/current: 4.2V/0.2C, cut-off current ≤36mA Discharging current: 0.2C (cut-off voltage 3.0V) Cycle interval time: 20minutes | |
12 | Energy retention capacity | ≥80% | At 25±2℃ operation temp, placement 28 days then to calculate | |
13 | Deep discharge | =initial capacity | After standard charging, at 25±2℃ operation temp With a 10-ohm resistor for 24 hours to discharge ,then use 0.1C charge to 4.2V, cut-off current≤36mA | |
14 | Thermal shock | ≥80% good appearance | Undergo 5 times cycle testing and confirm standard discharging time, then check the appearance is good after standard charging. Cycle temp: humi less than 85%RH, 55℃ (2 hrs)—20℃ (4 hrs)- -10℃ (2hrs)*5 times | |
No | Item | Standard | Detection conditions | |
1 | Visual inspection | No bumps, discoloration, deformation, or damage | Visual inspection | |
2 | Weight | About130g | ||
3 | Internal resistance | <120Noconnecting lines included. | Measured within one hour after standard charging using a 1 kHz analog sine wave method at an ambient temperature of 25±2℃ | |
4 | Open-circuit voltage | About 3.7V | After the battery is fully discharged, it is charged at 0.5Cfor 1.25 hours under an ambient temperature of 25±2℃, and then measured. | |
5 | Cycle life | ≥80%(after 500times cycle s) | Under an ambient temperature of 25±2℃, perform 500 cycles of charge and discharge. Charging voltage/current: 4.2V/0.2C(termination current ≤150mA). Discharge current: 0.2C(termination voltage 3V). Rest time: 20 minutes. | |
6 | Power retention | ≥85% | After standard charging, place it in an ambient temperature of 25±2℃ for 28 days, then calculate the power consumption | |
7 | Temperature Discharge Characteristics | 60℃ | 95% | After standard charging is complete, discharge at the standard discharge current in the corresponding ambient temperature until the termination voltage is reached. |
25℃ | 100% | |||
0℃ | 70% | |||
-10℃ | 60% | |||
No | Item | Standard | Detection conditions |
1 | Leakage | No leakage | After standard charging is completed, place it in an environment with ambient temperature of 60±2℃ and relative humidity of 85% for 20 days, then place it in an environment with 25±2℃ for 1 week. |
2 | Overcharge protection | No cracking, sparks, smoking, or leakage | After standard charging is completed, connect a 0.5C/4.2V constant voltage and constant current power supply to the input terminal for 24 hours in an environment with a temperature of 25±2℃ |
3 | Short-circuit protection | No cracking, sparks, smoking, or leakage | After standard charging is complete, connect the positive and negative terminals of the battery directly with a 80mΩ±20mΩ wire and leave it for 8 hours in an environment with a temperature of 25±2℃ |
4 | Reverse Charging Protection | No cracking, sparks, smoking, or leakage | After standard charging is completed, connect a 0.5C/4.2Vconstant voltage and constant current power supply in reverse at the input terminalfor 24 hours in an environment with a temperature of 25±2℃. |
5 | Deep discharge | Same as initial capacity | After standard charging, discharge with a 5-ohm resistor for 24 hours at an ambient temperature of 25±2℃, then charge at a current of 0.5Cat an ambient temperature of 25±2℃ until the termination voltage reaches 4.2V (termination current ≤150mA). |
6 | Vibration | No leakage,no fire | Fix the battery charged to standard on a vibration table, and vibrate it along the X, Y, and Z directions for 30 minutes each, with an amplitude of 1.6mm, vibration frequency ranging from 10Hz to 55Hz, changing by 1Hz per minute. |
7 | Thermal shock | No cracking, sparks, smoking, or leakage | Place the battery in a thermal chamber, increasing the temperature by 5°C per minute until it reaches 130°C, then maintain that temperature for 10 minutes. |
8 | Overcharge protection voltage:4.25±0.02V(<1s) | ||
9 | Overcharge Release Protection Voltage:4.19±0.03V | ||
10 | Over-discharge protection voltage:2.8±0.035V (<96ms) | ||
11 | Over-dischargeRelease protection voltage:3.0±0.1V | ||
12 | over-current discharge protection:5.2~11.4A,Typical value7.9A(<20ms) | ||
13 | over-current charge protection:3.9~8.5A,Typical value5.2A(<12ms) | ||
14 | Circuit Static Current:≤6uA | ||
No. | Type | Connection Mode | Voltage(V) | Nominal(mAh) |
1 | Lithium battery | 18650 | 3.7V | 2000/2200/3000/3400 |
2 | lithium battery pack | 18650-2P | 3.7V | 4000/4400/5200/6000/6800 |
3 | lithium battery pack | 18650-3P | 3.7V | 9000 |
4 | lithium battery pack | 18650-3P | 3.7V | 9000 |
5 | lithium battery pack | 18650-4P | 3.7V | 12000 |
6 | lithium battery pack | 18650-4P | 3.7V | 12000 |
7 | lithium battery pack | 18650-2S | 7.4V | 2000/2200/3000/3400 |
8 | lithium battery pack | 18650-2P2S | 7.4V | 5200/6000 |
9 | lithium battery pack | 18650-2P2S | 7.4V | 5200/6000 |
10 | lithium battery pack | 18650-3S | 12V | 2000/2200/3000 |
11 | lithium battery pack | 18650-2P3S | 12V | 6000 |












