China Lithium Cell Manufacturer Professional Customized Smart Speaker Battery HY 686770 3.7V 4000mAh Li-ion Polymer Battery

$4.80
In stock
SKU
HY 686770 3.7V 4000mAh

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: 8040103
    Type: Li-polymer
    Nominal Voltage: 3.7V
    Size: 8*40*105mm
    Nominal Capacity: 4000mAh
    Product name: HY 8040103 Li-ion Battery
    Warranty: 1 Year
    Weight: 77g
    Cycle life: 500 Times
    Application: Tablet PC Battery
    Certificate: UN38.3/CE/MSDS/ROHS/UL
    Payment: Paypal.TT.Escrow.Western Union
    Max charge current: 1C

Li-Ion 18650 Battery

China Lithium Cell Manufacturer Professional Customized 4000mAh Battery

4000mAh Smart Speaker Battery

686770 3.7V 4000mAh Li-ion Polymer Battery

Product Parameters

No.

Item

General Parameter

Remark

1

Rated Capacity

Typical

4050mAh

Standard discharge(0.2C C5A) after Standard charge

Minimum

4000mAh

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

≤65mΩ

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: max72mm

Width: max67mm
Thickness: max6.8mm

Initial  Dimension




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