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

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Payment Terms	T/T
Supply Ability	500K/Month
Delivery Time	3-5days
Packaging Details	130pcs/Carton box
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
Brand Name	Tenpower
Model Number	INR21700-50SG
Certification	UN38.3/CE/UL/IEC62133/KC/BIS
Place of Origin	China

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Product Details
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Product Specification


Payment Terms	T/T	Supply Ability	500K/Month
Delivery Time	3-5days	Packaging Details	130pcs/Carton box
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
Brand Name	Tenpower	Model Number	INR21700-50SG
Certification	UN38.3/CE/UL/IEC62133/KC/BIS	Place of Origin	China
High Light	20A Rechargeable Lithium Battery ，INR21700-50SG Rechargeable Lithium Battery ，5000mAh Rechargeable Lithium Cells

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

Company Details

Bronze Gleitlager

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and

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from Quality China Factory

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Business Type:

Manufacturer,Exporter,Trading Company 


Year Established:

2018.04.10 


Employee Number:

147~178 
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Ecer Certification：

Verified Supplier 

Shenzhen EMB Technology Co., Ltd. is an integrated lithium battery solutions provider specializing in battery cell supply, battery pack manufacturing, and energy storage solutions for global customers. Headquartered in Shenzhen, China’s innovation and technology hub, EMB combines strong supply c... Shenzhen EMB Technology Co., Ltd. is an integrated lithium battery solutions provider specializing in battery cell supply, battery pack manufacturing, and energy storage solutions for global customers. Headquartered in Shenzhen, China’s innovation and technology hub, EMB combines strong supply c...

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Shenzhen EMB Technology Co., Ltd
Building B, No.12 Zirong Road, Kengzi Subdistrict, Pingshan New District, Shenzhen City
https://www.lithiumlifepo4-battery.com/

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