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Tenpower INR21700-50SG Rechargeable Lithium Battery 5000mAh 20A High Discharge

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Tenpower INR21700-50SG Rechargeable Lithium Battery 5000mAh 20A High Discharge

Brand Name:	Tenpower
Model Number:	INR21700-50SG
MOQ:	1
Price:	＄1.88
Packaging Details:	130pcs/Carton box
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

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

Document:

High Discharge Rate:

Max 20A

High Capacity:

Nominal 5000mAh

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

Highlight:

20A Rechargeable Lithium Battery

INR21700-50SG Rechargeable Lithium Battery

5000mAh Rechargeable Lithium Cells

Product Description

Tenpower INR21700-50SG 5000mAh 20A High Discharge Rechargeable Lithium Battery

The INR21700-50SG 21700 Battery is a high-performance lithium-ion rechargeable power cell designed for long-lasting energy delivery and reliable performance. With a 5000mAh capacity and 20A maximum continuous discharge rate, this battery is ideal for medium- to high-demand applications, offering stable output and extended usage time.

Cell Characteristics

Specification	Value
Capacity	Typical 5000mAh (18Wh) Minimum 4900mAh (17.64Wh)
Cell Voltage	Nominal 3.6V Charge 4.2V Discharge 2.5V
Continuous Charge Current	Standard 2.5A Maximum 6A
Continuous Discharge Current	Maximum 20A
Ambient Temperature	Charge 0～45℃ Discharge -20～60℃
Impedance	≤14mΩ (25±3℃)
Weight	71g
Dimension	70.80mm(Max) * 21.35mm(Max)
Cycle life	500cycle(70%)

Key Features

High Capacity: 5000mAh provides extended runtime before requiring recharge
High Discharge Rate: 20A 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 (keys, coins, tools) 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 200-500 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

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