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21700 Battery Supplier China 5000mAh INR21700-50XG Lithium Ion Battery Max 8C Discharge Rate Grade A Cell

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21700 Battery Supplier China 5000mAh INR21700-50XG Lithium Ion Battery Max 8C Discharge Rate Grade A Cell

Brand Name:	EMB
Model Number:	INR21700-50XG
MOQ:	130
Price:	$1.8
Packaging Details:	130pcs/Carton box
Payment Terms:	T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

China

Certification:

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

Document:

Terminal Type:

Full Tab

Key Feature:

Ultra-low Internal Resistance, High Rate Capability, Low Temperature Rise

Applications:

Electric Tools, Cleaning Appliances, Drones, E-bike

Capacity:

5000mAh

Supply Ability:

500K/Month

Highlight:

21700 5000mAh lithium ion battery

INR21700-50XG 8C discharge cell

Grade A full tab cylindrical cell

Product Description

21700 Battery Supplier China 5000mAh INR21700-50XG Lithium Ion Battery Max 8C Discharge Rate Grade A Cell

Developed for sustained power delivery and reliable running, the INR21700-50XG 21700 stands as a top-grade rechargeable lithium-ion battery. With 5000mAh capacity and 40A max continuous discharge current, it perfectly matches medium & high-load devices, maintaining stable voltage and lengthening service life.

Cell Characteristics

Specification	Value
Capacity	Typical 5000mAh (18Wh) Minimum 4950mAh (17.82Wh)
Cell Voltage	Nominal 3.6V Charge 4.2V Discharge 2.5V
Continuous Charge Current	Standard 2.5A Maximum 15A
Continuous Discharge Current	Maximum 40A
Ambient Temperature	Charge 0～45℃ Discharge -20～60℃
Impedance	≤4mΩ
Weight	75g
Dimension	70.50mm(Max) * 21.50mm(Max)
Cycle life	500cycle(60%)

Key Features

Extremely Low Internal Impedance: The full tab structure minimizes the current collection path, significantly reducing internal resistance compared to conventional cells
Excellent Thermal Management: Balanced current distribution produces uniform heat and avoids local overheating
High Capacity: 5000mAh provides extended runtime before requiring recharge
High Discharge Rate: 40A continuous discharge, ideal for medium-to-high load equipment
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: Works seamlessly with most types of electronic hardware

Applications

Aerospace: Provides lightweight, high-energy-density batteries for spacecraft, drones, UAV, and model aircraft
Robotics: Supplies continuous power for high-load robots
Lightweight Power Equipment: Assists with power for electric motorcycles, snowmobiles, electric bicycles, and other lightweight power tools
Power Tools: Delivers high burst power for drills, angle grinders, electric saws, blow dryers, and other high-current tools
Cleaning Appliances: Provides stable and lasting power for vacuum cleaners, mite removers, floor washers, steam mops, garden tools, and more, ensuring work efficiency and long battery life.
Medical Electronics: Provides highly reliable power for life monitors, portable medical devices, and more

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

Ratings & Review

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

Modeste

Ireland Sep 28.2026

trustpilot.com

Helpful (2648)

They look great and are very practical to use. The quality is impressive, and they’re a great choice for my projects. Overall, a lovely product that does exactly what I need. Very happy with my purchase!

Velentas

Italy Mar 2.2026

trustpilot.com

Helpful (97)

Questa batteria con 5000mAh, buona scarica da 80A, mi piace questa batteria

A*u

Germany Nov 7.2025

trustpilot.com

Helpful (48)

The packaging was good, nothing was damaged. I waited for over a month to receive the goods, and the battery cells are good.

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Home Energy Storage Batteries

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21700 Battery Supplier China 5000mAh INR21700-50XG Lithium Ion Battery Max 8C Discharge Rate Grade A Cell

21700 5000mAh lithium ion battery

INR21700-50XG 8C discharge cell

Grade A full tab cylindrical cell

Overall Rating

Rating Snapshot

All Reviews

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