| １、 SCOPE |
| Cylindrical cell and its stack-up battery。 |
| Model：SPK4000LAHT |
Cell Size：18700crew cut（18.0±0.1×70.0±0.5）(mm)
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| 2 、DATA OF STACK UP BATTERIES |
| All data involves voltage and weight to stack-up battery are equal to the value of unit cell |
| time the number of unit cell which consisted in the stack-up batteries |
| Example ：Stack-up batteries consisting three unit cells |
| Nominal voltage of unit cell=1.2V |
| Nominal voltage of stack-up batteries =1.2V×3=3.6V |
| Unless otherwise stated, tests should be done within one month of delivery under the |
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| following conditions： |
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Ambient Temperature ：20±5℃ |
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Relative Humidity ： 65±20% |
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| Notes： Standard Charge/Discharge Conditions： |
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Charge： |
400 |
mA(0.1C)× 14 hours |
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Discharge： |
800 |
mA(0.2C) to 1.0V/cell |
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| Test |
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Specification |
Conditions |
Remarks |
| Capacity |
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≥ |
4000 |
Standard Charge Discharge |
up to 3 cycles are allowed |
| Open Circuit Voltage(OCV) |
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≥ |
1.25 |
Within l hour after standard Charge |
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| Internal Impedance |
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≤ |
18 |
Upon fully charge(lKHz) |
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| High Rate Discharge(1C) |
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≥ |
45 |
Standard Charge, l hour rest Before discharge by 1C to 1.0V/cell |
up to 3 cycles are allowed |
| Charge Retention |
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≥2600 |
(65%) |
Standard Charge,Storage：28 days,Standard Discharge |
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| IEC Permanent Charge test |
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IEC61951-2(2003)7.4.2.3 |
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| Leakage |
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No leakage nor deformation |
Fully charged at : |
400 |
mA for |
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| 14 |
hrs Stand for 14 days |
| Vibration Resistance |
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Change of voltage should be under 0.02V/cell,Change of impedance should be under 5 milli-ohm/cell |
Charge the battery 0.1C 14hrs,then leave for 24hrs,check Battery before/after vibration,Amplitude 1.5mmVibration 3000 CPMAny direction for 60mins. |
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| Impact Resistance |
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Change of voltage sho-uld be under 0.02V/cell Change of impedance should be under 5 milli-ohm/cell |
Charge the battery 0.1C 14hrsThen leave for 24hrs,check bat-before/ after dropped,Height 50 cm Wooden board(thickness 30mm) Direction not specified,3 times. |
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| Trickle charge life |
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≥4 |
0.05C（0~70℃） |
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| 5、CONFIGURATION, DIMENSIONS AND MARKINGS |
| Please refer to the attached drawing. |
| 6、EXTERNAL APPEARANCE |
| The cell/battery shall be free from cracks, scars, breakage, rust, discoloration, leakage nor deformation. |
| 7、WARRANTY |
| One year limited warranty against workmanship and material defects. |
| 8、CAUTION |
| ⑴Reverse charging is not acceptable. |
| ⑵Charge before use. The cells/batteries are delivered in an uncharged state. |
| ⑶Do not charge/discharge with more than our specified current. |
| ⑷Do not short circuit the cell/battery Permanent damage to the cell/battery may result. |
| ⑸Do not incinerate or mutilate the cell/battery. |
| ⑹Do not solder directly to the cell/battery. |
| ⑺the life expectancy may be reduced if the cell/battery is subjected adverse conditions like: |
| extreme temperature, deep cycling, excessive overcharge/ over-discharge. |
| ⑻store the cell/battery uncharged in a cool dry place. Always discharge batteries before bulk |
| storage or shipment. |
