Li-ion Cell Factory Wholesale 21700-2S1P 7.4V 5000mAh Cylindrical Battery Pack for Lighting Equipment

$7.50
In stock
SKU
21700-2S1P 7.4V 5000mAh

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


Li-Ion 18650 Battery

Li-ion Cell Factory Wholesale Cylindrical Battery

21700-2S1P 7.4V 5000mAh Cylindrical Battery

Battery Pack for Lighting Equipment

Product Parameters

No.

Item

General Parameter

Remark

1

Rated Capacity

Typical

5000mAh

Standard discharge(0.2C C5A) after Standard charge

Minimum

5000mAh

2

Nominal Voltage

7.4V

Mean Operation Voltage

3

Voltage at end of

6.0V

Discharge Cut-off Voltage

Discharge

4

Charging Voltage

8.4±0.03V

 

5

Internal Impedance

≤110mΩ

Internal resistance measured at AC 1KHZ after 50% charge

The measure must uses the new batteries that within one week after shipment and cycles no more than 5 times

6

Standard charge

Constant Current 0.2C5A

Charge time : Approx 6h

Constant Voltage 8.4V

0.01 C5A cut-off

7

Standard discharge

Constant current 0.2 C5A

 

end voltage 6.0V

8

Fast charge

Constant Current 0.5C5A

Charge time : Approx 2.5h

Constant Voltage 8.4V

0.01 C5A cut-off

9

Fast discharge

Constant current 0.5C5A

 

end voltage 6.0V

 

10

Maximum Continuous Charge Current

1 C5A

 

11

Maximum Continuous Discharge Current

1 C5A

 

12

Operation Temperature Range

Charge: 0~45

60±25%R.H.

Bare Cell

Discharge: -20~60

 

13

Storage Temperature Range

Less than 1 year: -20~25

60±25%R.H.

less than 3 months: -20~40℃

at the shipment state

14

Pack  Dimension

High: max72mm

Width: max42mm
Thickness: max21mm

Initial  Dimension




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