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Home > products > Lithium Ion Battery > Cylindrical 18650 Cell Wholesale 18650 Lithium Battery 4000mah Rechargeable Battery Lithium

Cylindrical 18650 Cell Wholesale 18650 Lithium Battery 4000mah Rechargeable Battery Lithium

Product Details

Place of Origin: Wuhan,China

Brand Name: FBATTERY

Certification: CE,ROHS,UN38.3

Model Number: 18650 3.7V

Payment & Shipping Terms

Minimum Order Quantity: Negotiable

Price: Negotiable

Packaging Details: blister card packing,Carton

Delivery Time: 20 work days

Payment Terms: L/C, D/A, D/P, T/T in advance

Supply Ability: 10000PCS/30Days

Get Best Price
Highlight:

18650 Cell Wholesale

,

Rechargeable 18650 Battery

,

18650 Lithium Battery

Voltage:
3.7V
Capacity:
4000mAh
Length:
≤67.0mm
Width:
≤37.0mm
Height:
≤19.5mm
Line Length:
150.0mm±5mm
Size:
Cylindrical
Operating Temperature:
﹣20℃~+50℃
Voltage:
3.7V
Capacity:
4000mAh
Length:
≤67.0mm
Width:
≤37.0mm
Height:
≤19.5mm
Line Length:
150.0mm±5mm
Size:
Cylindrical
Operating Temperature:
﹣20℃~+50℃
Cylindrical 18650 Cell Wholesale 18650 Lithium Battery 4000mah Rechargeable Battery Lithium

Products assembly drawing and size refers
 

NOPart NameDescription

quantity

1Cell18650-2000mAh2
2PCM

W5.0 T0.8 L35mm

S-8205 DWO1

1
3Lead1007 22#2
4ConnectorXH 2.541

 

Specification

 

Item Specifications
Typical Capacity 

4100mAh Discharge (4.2Vto2.5V) 0.2C

Minimum capacity 

2000mAh Discharge (4.2Vto2.5.0V) 0.5C

Nominal voltage 3.7V
Standard Charge 4.2V
Standard Discharge CC,0.2C(800mA) 2.75V
End-of-charge Current 20mA (At CV mode)
Standard charging current 800mA (0.2C5rate) 0.2C 
Max Charge Current 1500mA (0.5C5rate) 0.5C充电
Max Discharge Current1500mA
Initial Impedance ≤130mΩ

Weight

Approx200.0g

Operating temperature 

Charging: 0℃~45℃
Discharge:-20℃~+50℃

Storage temperature 

Within one month:-20℃~+50℃,80%RH Max
Within one year:-20℃~+25℃, 75%RH Max

Storage Humidity 

≤75% RH

Appearance

Without scratch, distortion, contamination and leakage

Temperature Dependence of Discharge Capacity

Charge temperature

Discharge temperature

25℃

-10℃0℃15℃25℃50℃

Relative Capacity

70%80%90%100%95%
The relationship between discharge rate and capacity

Charging temperature / current

Discharge rate

25℃/0.2C

0.2C

0.5C1C

Relative Capacity

100%

95%

85%

 
 
Circuit diagram
Cylindrical 18650 Cell Wholesale 18650 Lithium Battery 4000mah Rechargeable Battery Lithium 0
 
 

Application
 
Toys, Power Tools, Home Appliances, Camera,Consumer Electronics,POS machine,Router/Switch,Remote Control and so on.
 
General Performance
 

Item Test Methods and Condition Criteria 

 
0.2C Capacity
 

After standard charging, rest battery for 10min, then discharging at 0.2C to voltage 3.0V, recording the discharging time.

≥290min
 

 
 
Cycle life
 

Constant current 0.5C charge to 4.2V, then constant voltage charge to current declines to 0.01C, rest 10min,constant current 0.5C discharge to 3.0V,rest 10min. Repeat above steps till continuously discharging capacity Higher than 80% of the Initial Capacities of the Cells

 
 
≥300 times
 

Capability of keeping electricity

20±5℃, After standard charging, rest the battery 28days, discharging at 0.2C to voltage 3.0V, recording the discharging time.

 
 
≥90%