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Model
Standard capacity
Standard voltage
Max voltage
Discharge end voltage
Standard charge current
Max charge current
Max continuous discharge current
Peak discharge
current
Cell dimension
Weight
Life cycle
More
datasheet
18650 3.6V3400mAh
3400 mAh
3.6 V
4.2 ±0.05 V
2.75 ±0.05 V
0.5C
1C
2C
3C
18x65mm
<48g
>1000times

Cell with CE,ROHS,UN38.3,MSDS,UL,BIS,Sea shipment,Air shipment, DG certificates!
 

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 Denmark customer.

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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