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China Lithium Batteries Supplier Wholesale Rechargeable Batteries BZ 401220 70mAh 3.7V Small Lipo Battery for Bluetooth Headset

$0.95
In stock
SKU
BZ 401220

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: BZ
  • Model Number: 401220
  • Type: Li-polymer
  • Nominal Voltage: 3.7V
  • Size: 4*12*22mm
  • Nominal Capacity: 70mAh
  • Cycle life: 500 Times
  • Certificate: CE/RoHS/UN38.3/MSDS/FCC
  • Weight: 2g
  • Warranty: 12 Months
  • Battery type: Li Polymer Battery Cells
  • Model: 401220
  • Voltage: 3.7V
  • Capacity: 70mah
  • Battery size: 4*12*22mm
  • Charge current: 0.2C~1C


 

li-ion battery


401220 70mAh 3.7V Small Lipo Battery

70mAh 3.7V Small Lipo Battery for Bluetooth Headset

Wholesale Rechargeable Batteries 70mAh

Specification:

No.

Item

General Parameter

Remark

1

Rated Capacity

Typical

70mAh

Standard discharge(0.2C C5A) after Standard charge

Minimum

68mAh

2

Nominal Voltage

3.7V

Mean Operation Voltage

3

Voltage at end of

3.0V

Discharge Cut-off Voltage

Discharge

4

Charging Voltage

4.2±0.03V

 

5

Internal Impedance

≤450mΩ

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 4.2V

0.01 C5A cut-off

7

Standard discharge

Constant current 0.2 C5A

 

end voltage 3.0V

8

Fast charge

Constant Current 0.5C5A

Charge time : Approx 2.5h

Constant Voltage 4.2V

0.01 C5A cut-off

9

Fast discharge

Constant current 0.5C5A

 

end voltage 3.0V

 

10

Maximum Continuous Charge Current

1 C5A

 

11

Maximum Continuous Discharge Current

1C5A

 

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: max42mm

Width: max12mm
Thickness: max4mm

Initial  Dimension


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