Li-ion Cell Factory Wholesale 21700-2S1P 7.4V 5000mAh Cylindrical Battery Pack for Lighting Equipment
FOB Price: US $1.2 - 1.5 / Ampere
Min.Order Quantity: 1000 Ampere
Please contact us for the order !
- Place of Origin: Guangdong, China
- Brand Name: HY
- Model Number: 21700-2S
- Type: Li-polymer
- Nominal Voltage: 7.4V
- Size: 21*42*72mm
- Nominal Capacity: 5000mAh
- Product name: 21700-2S
- Warranty: 1 Year
- Weight: 145g
- Cycle life: 500 Times
- Application: Lighting Equipment
Product Parameters
|
No. |
Item |
General Parameter |
Remark |
|
|
1 |
Rated Capacity |
Typical |
5000mAh |
Standard discharge(0.2C C5A) after Standard charge |
|
Minimum |
5000mAh |
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2 |
Nominal Voltage |
7.4V |
Mean Operation Voltage |
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3 |
Voltage at end of |
6.0V |
Discharge Cut-off Voltage |
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|
Discharge |
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4 |
Charging Voltage |
8.4±0.03V |
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5 |
Internal Impedance |
≤110mΩ |
Internal resistance measured at AC 1KHZ after 50% charge |
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The measure must uses the new batteries that within one week after shipment and cycles no more than 5 times |
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6 |
Standard charge |
Constant Current 0.2C5A |
Charge time : Approx 6h |
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Constant Voltage 8.4V |
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0.01 C5A cut-off |
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7 |
Standard discharge |
Constant current 0.2 C5A |
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end voltage 6.0V |
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8 |
Fast charge |
Constant Current 0.5C5A |
Charge time : Approx 2.5h |
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Constant Voltage 8.4V |
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0.01 C5A cut-off |
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9 |
Fast discharge |
Constant current 0.5C5A |
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end voltage 6.0V |
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10 |
Maximum Continuous Charge Current |
1 C5A |
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11 |
Maximum Continuous Discharge Current |
1 C5A |
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12 |
Operation Temperature Range |
Charge: 0~45℃ |
60±25%R.H. |
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Bare Cell |
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Discharge: -20~60℃ |
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13 |
Storage Temperature Range |
Less than 1 year: -20~25℃ |
60±25%R.H. |
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|
less than 3 months: -20~40℃ |
at the shipment state |
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14 |
Pack Dimension |
High: max72mm Width: max42mm |
Initial Dimension |
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