MachineU > China Products > Electrical Equipment & Supplies > Batteries > Lithium Ion Batteries
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA
Specifications
Brand Name :
OiD
Model Number :
INR21700L40A40
Certification :
BIS, KC, BSMI, CB, UL, CCC
Place of Origin :
China
MOQ :
100pcs
Price :
$0.5 ~ $100.0 / pcs
Delivery Time :
3 ~ 7 days for storage
Payment Terms :
TT,L/C,Western Union
Name :
3.6 Volt Battery
Battery Type :
3.6V 4000mAh Rechargeable
ODM :
Free custom design for packs
Positive Electrode Material :
NCA (Nickel Cobalt Aluminum)
Cycle Life :
600+ cycles
Charging/ Discharging :
8A/40A
Operating Temperature :
-40°C~60°C
High energy density :
209Wh/kg
Description

INR21700L40A40 3.6V 4000mAh 40A Discharge 600 Cycles 21700 Battery

Product Name:
INR21700L40A40 21700 Battery

Advantages:

  • High capacity for extended runtime
  • Superior performance in low-temperature environments
  • Long cycle life with reliable capacity retention
  • Certified for safety and quality assurance

Specifications:

Parameter

Value

Model

INR21700L40A40

Nominal Voltage

3.6V

Nominal Capacity

4000mAh

Positive Electrode Material

NCA (Nickel Cobalt Aluminum)

Negative Electrode Material

Graphite + Silicon

Dimensions (Diameter x Height)

≤21.30 mm x ≤70.40 mm

Weight

≤69.0g

Volume Energy Density

574 Wh/L

Weight Energy Density

209 Wh/kg

Internal Resistance

≤13mΩ

Charging Cut-off Voltage

4.20V ± 0.05V

Discharge Cut-off Voltage

2.50V

Maximum Charging Current

8.0A

Maximum Continuous Discharge Current

40A

Terminal Type

Standard 21700 Flat Top

Cycle Life:

Test Condition

Performance

4A Charge / 4A Discharge

600 cycles, capacity retention ≥60%

6A Charge / 10A Discharge

400 cycles, capacity retention ≥50%

Discharge Curve:
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA

Operating Temperature Range:

Parameter

Range

Charging Temperature

0°C to 50°C

Discharging Temperature

-40°C to 75°C

Certifications:
BIS, KC, BSMI, CB, UL, CCC

Key Features:

  • High capacity for extended runtime
  • Low internal resistance for efficient power delivery
  • Suitable for extreme temperature environments
  • Certified for global safety standards

Applications:

  • Electric vehicles and hybrid vehicles
  • Power tools and industrial equipment
  • Portable medical devices
  • Energy storage systems (ESS)
  • Emergency lighting and backup power

3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA

Usage Warnings & Precautions:

  • Avoid overcharging or over-discharging the battery.
  • Do not expose the battery to high temperatures or direct sunlight.
  • Use only compatible chargers and devices.
  • Keep away from children and flammable materials.

Storage Guidelines:

  • Store in a cool, dry place at 20°C to 25°C.
  • Maintain a charge level of 30% to 50% for long-term storage.
  • Avoid storing in fully charged or fully discharged states.

Warranty & Disclaimer:
This product is covered by a limited warranty against manufacturing defects. The warranty does not cover damage caused by misuse, improper handling, or unauthorized modifications. Always follow the manufacturer’s guidelines for safe and optimal use.

Send your message to this supplier
Send Now

3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA

Ask Latest Price
Product Detail
Brand Name :
OiD
Model Number :
INR21700L40A40
Certification :
BIS, KC, BSMI, CB, UL, CCC
Place of Origin :
China
MOQ :
100pcs
Price :
$0.5 ~ $100.0 / pcs
Contact Supplier
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA
3.6V 4000mAh 21700 Battery 40A Discharge 600 Cycles NCA

Shenzhen Jianheng Technology Co., Ltd.

Verified Supplier
1 Years
shenzhen
Since 2020
Business Type :
Manufacturer, Distributor/Wholesaler
Main Products :
Lithium Ion Battery, LiFePo4 Battery, Solid State Battery
Total Annual :
15000000-20000000
Employee Number :
300~500
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Low Temperature Battery
MachineU China Products Electrical Equipment & Supplies Batteries Lithium Ion Batteries
Contact Supplier
Submit Requirement