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21700 Cylindrical Cells

Factory Price 21700 40T Cylindrical Lithium Ion Battery Cell 4000mAh 600 High Cycle Life for Power Tools

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Factory Price 21700 40T Cylindrical Lithium Ion Battery Cell 4000mAh 600 High Cycle Life for Power Tools

Brand Name:	EMB
Model Number:	INR21700-40T
MOQ:	1
Price:	$1.82
Packaging Details:	150pcs/Carton box
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

Tianjin

Certification:

UN38.3/CE/UL/IEC62133/KC/BIS

Document:

Cell Type:

Lithium-ion

Terminal Type:

Flat Top

Size:

21700（21mm X 70mm）

Dimensions:

21mm X 70mm

Model:

21700 Cylindrical Cells

Charging Method:

CC-CV

Supply Ability:

500K/Month

Product Description

Factory Price 21700 40T Cylindrical Lithium Ion Battery Cell 4000mAh 600 High Cycle Life for Power Tools

Engineered for sustained, dependable energy output, the INR21700-40T is a high-grade rechargeable lithium-ion battery. Boasting 4000mAh capacity and 35A max continuous discharge capability, it meets the power needs of medium-to-high-demand applications, ensuring stable performance and longer operational periods.

Cell Characteristics

Specification	Value
Capacity	Typical 4000mAh
Cell Voltage	Nominal 3.6V Charge 4.2V Discharge 2.5V
Continuous Charge Current	Standard 2A Maximum 6A
Charge time	Standard 150min
Continuous Discharge Current	Maximum 35A
Ambient Temperature	Charge 0 to 60℃ Discharge -20 to 60℃
Impedance	≤13mΩ
Weight	70g
Dimension	70.3mm(Max)*21.25mm(Max)
Cycle life	600cycle(60%)

Key Features

High Capacity: 4000mAh provides extended runtime before requiring recharge
High Discharge Rate: 35A continuous discharge, ideal for medium-to-high-drain applications
Lithium-Ion Chemistry: Provides stability, efficiency, and low internal resistance
Rechargeable & Long-Lasting: Supports multiple charge cycles with minimal degradation
Output Stability: Stable voltage curve during discharge ensures continuous power output
Compact 21700 Size: Universally compatible with a wide range of electronic devices

Applications

Flashlights: Ideal for high-lumen LED torches requiring consistent power
Medical Devices: Reliable power source for essential equipment
Power Banks & Backup Systems: Supports portable energy solutions
Lightweight Power Equipment: Auxiliary power for robotic vacuums, electric bicycles, scooters, and fishing boats
Power Tools: High burst power for drills, angle grinders, electric saws, and other high-current tools

Warning

Lithium-ion batteries require proper handling and knowledge to ensure safe operation
Failure to follow safety guidelines may result in fire, explosion, serious injury, or property damage
Only purchase and use if you fully understand lithium-ion battery safety
Never leave a battery unattended while charging
Keep away from animals and children
Prevent contact with metal objects to avoid short circuits
Inspect wraps and insulators regularly for damage - repair or dispose of damaged batteries immediately
Resellers must pass these warnings to customers
Typical cycle life of 250 cycles before noticeable capacity reduction - recycle at end of life
Do not crush, incinerate, or modify batteries
Only use within manufacturer specifications

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products details

18650 Cylindrical Cells

21700 Cylindrical Cells

Full Tab Cylindrical Cells

LiFePO4 Prismatic Cells

12.8V LiFepo4 Battery

25.6V LiFepo4 Battery

Home Energy Storage Batteries

LiFePO4 Cylindrical Cells

Semi Solid State Power Bank

Factory Price 21700 40T Cylindrical Lithium Ion Battery Cell 4000mAh 600 High Cycle Life for Power Tools

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