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Model |
Max continuous charge current |
Max continuous discharge current |
Cycle life |
Inner resistance |
Application |
18650 3.6V2600mAh |
1C |
3C |
≥1000 times |
≤18mΩ |
Electric bike, electric scooter, etc |
● Long cycle: more than 1000 long cycles
● High discharge rate: 10A discharge cycle
● Low temperature rise: with low internal resistance and low discharge temperature rise
● Application:Electric bike, electric scooter, etc |
Cell with CE,ROHS,UN38.3,MSDS,UL,BIS,Sea shipment,Air shipment, DG certificates!
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Our battery export to Finland,Denmark,Belgium,Spain,France,Italy,Germany,Netherlands,Norway,Canada,USA,Australia,Mexicanos,Panama, Japan,India,Korea etc. following package battery for Belgium customer. |
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Cell test methods |
NO. |
ITEM |
CRITERION |
TESTING METHOD |
1 |
Discharge rate performance |
A)Discharge Performance (0.2C) ≥100%Rated Capacity
B)Discharge Performance (0.5C) ≥95%Rated Capacity
C)Discharge Performance (1C) ≥90%Rated Capacity
D)Discharge Performance (2C) ≥80%Rated Capacity
E)Discharge Performance (3C) ≥80%Rated Capacity |
The cell is charged according to standard charge method, and then, it is discharged to 2.75V using 0.2C current; after, the cell is charged according to standard charge method, and then, it is discharged to 2.75V using 0.5C current; The cell is charged according to standard charge method, and then, it is discharged to 2.75V using 1.0C current; At the end, the cell is charged according to standard charge method, and then, it is discharged to 2.75V using 2.0C current;
The discharge capacities under different current shall be recorded. |
2 |
Cycle life |
≥1000cycle |
Under room temprature, the cell is charged to 4.2V using 0.5C current and then store it for 10 min. Then it is discharged to 2.75V using 0.5C current. Recycle it continuously till the residual capacity is less than 70% of the rated capacity. |
3 |
High-Low temperature discharge performance |
Discharge capacity/ initial capactiy×100%
A)60℃≥95% rated capacity
B)0℃≥80%rated capacity
C)-10℃≥70% rated capacity
D)-20℃≥55% rated capacity
No obvious outside damage, No leakage, No smoke, No explosion |
Test the batteries’ initial state and capacity , after standard charging, store it at 60±2℃ for 3 hours, discharge at 0.2C5mA to 2.5V, then make standard charging under room temperature. Then Store it at corresponding constant temperature for 3h under 0±2 ℃/-10±2 ℃/-20±2 ℃ in order. Then discharge the cell at 0.2C5mA to 2.5V and meanwhile make a capacity record. At last store it at room temperature for 2 hours and observe the cell appearance. |
4 |
Storage performance |
Residual Capacity≥90%Rated Capacity
Recovery Capacity≥98% Rated Capacity
Internal resistance increase rate≤30% |
After standard fully charge, make standard discharge. This capacity is recorded as initial discharge current. Then the cell is fully charged according to standard charge method and stored at 25℃ for 28 days. After storage, the cell is discharged according to the requirement of standard discharge method. This discharge capacity is named as the Residual capacity. And then charge and discharge the cell by 0.5C. This discharge capacity is recorded as the Recovery capacity. |
5 |
Vibration |
No leakage、No flame、No fire、No explosion |
After standard charging, fixed the cell to vibration table and subjected to vibration cycling that the frequency is to be varied at the rate of 1Hz per minute between 10Hz and 55Hz,the excursion of the vibration is 1.52mm. The cell shall be vibrated for 90 minutes per axis of x, y axes. |
6 |
Mechanical shock |
No leakage、No flame、No fire、No explosion |
In direction X, Y, and Z intersecting one another at right-angles, apply impacts having a minimum mean acceleration of 75G in the first 3mSec and a peak acceleration that falls between 125G and 175G. |
7 |
Temperature Cycling Test |
no leakage, no fire, no explosion |
The fully charged batteries are to be placed in a test chamber and subjected to the following cycles:
a) Raising the temperature to 75°C ±2°C within 30 minutes and maintaining this temperature for 4 hours.
b) Reducing the temperature to 20°C ±2°C within 30 minutes and maintaining this temperature for 2 hours.
c) Reducing the temperature to minus 20°C ±2°C (minus 40 ±5°F) within 30 minutes and maintaining this temperature for 4 hours.
d) Raising the temperature to 20°C±2°C within 30 minutes.
e) Repeating the sequence for a further 4cycles. f) After the 5th cycle, storing the batteries for 7 days prior to examination. |
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Why cooperate with us? |
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1. Excellent quality |
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2. Rapid delivery |
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3. Real guarantee |
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5. Fast reply on each questions/inquire |
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6. Reasonable price |
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8. On time market reaction discussion |
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10. Easy shipment by boat, by airplane,by train |
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11. Good finance support |
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