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High Rate 70A INR21700 RS50 5000mAh Cylindrical 21700 Ebike Battery

Low-Temperature High-Rate INR21700-RS50 Cylindrical Li-ion Cell

Brand:
Other
Model:
INR21700 RS50
Cell Grade:
Grade A
Nominal Capacity:
5000mah OEM/ODM
Nominal Voltage:
3.7v ,customized
Weight:
~71.3g
Size(mm):
21*70mm
Cycle Life:
≥80% capacity after 500 times

Quantity:
Availability:





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Technical Parameters

Product Description

Key Features

Application

Factory

Technical Parameters

Voltage	3.7v,customized
Capacity	5000mah OEM/ODM
Discharge current	OEM/ODM
Wide temperature batteries	Optional: can be used from -40°C to +85°CSupports discharge at -40°C and Charging at -20°C18650 21700 26650 32650 32700 battery cell
OEM/ODM	1S 2S 3S 4S 6S 8S,etc format solution
(Customized to your requirements)	bms,cable,connector,case,etc
Feature	Low internal resistance,low self-discharge,no memory effec,eco-friendly
Cycle Life	>80% capacity after 500 times
Certification	CE,MSDS,UN38.3,EMC,UL
Package	Individual package as required
Warranty	12 Months
Charge Voltage	4.2V
Discharge Cutoff	2.5V

Overview

This cell is the foundation for building superior battery packs. We offer comprehensive OEM and custom pack integration services, including:

Custom Battery Pack Design: We design and manufacture packs in various configurations (e.g., 13S4P, 14S5P) to meet your specific voltage, capacity, and power needs.

Advanced BMS Integration: Custom Battery Management Systems (BMS) with tailored protection for high-rate applications, including low-temperature lockout, cell balancing, and communication protocols (CAN, UART).

Robust Mechanical Engineering: Custom casing designs with IP67 rating, vibration damping, and efficient thermal management systems.

Performance Tuning: Optimize pack parameters for maximum power delivery, range, or cycle life based on your application's priority.

21700 18650集合图

Key Features

Unmatched Low-Temperature Performance:

Operates reliably in extreme cold as low as -40°C, ensuring power availability in winter or high-altitude conditions where standard batteries fail.

Minimal Voltage Sag:

Maintains stable voltage even under 70A continuous load, providing consistent power output and preventing performance drops during high-demand scenarios.

Robust & Safe Design:

Features an integrated Current Interrupt Device (CID) and Pressure Relief Vent for enhanced safety under abusive conditions. The NMC chemistry offers a stable balance of power and energy.

Long Service Life:

Advanced electrode and electrolyte formulations are engineered to withstand the stresses of high-rate cycling, ensuring long-term reliability.

Optimized for Pack Design:

The 21700 form factor offers an excellent balance of capacity and current capability, simplifying thermal management and mechanical integration in custom packs.

Application

High-Performance E-Bikes & E-Motorcycles: Provides the burst power for steep hill climbs and rapid acceleration.

Electric Scooters & Dirt Bikes: Delivers sustained high current for off-road and sport riding.

Professional Power Tools: For industrial equipment requiring maximum power with minimal voltage sag.

Outdoor & Aerospace Equipment: Reliable operation in harsh, low-temperature environments.

Custom EV Battery Packs: The ideal cell for OEMs building high-power, ruggedized battery systems.

Factory

Dongguan Misen Power Technology Co., Ltd. possesses advanced equipment, scientific management techniques, and excellent quality control. We focus on 18650, 21700, 32650, polymer, large single-cell power batteries, energy storage batteries, outdoor power supplies, emergency power supplies, lithium battery packs, and more.And the recycling and preparation of new energy vehicle battery modules, and provide OEM&ODM service.

These products are widely used in electric surfboards, electric bicycles, home energy storage, RV energy, marine energy, UPS systems, tower stations, and solar energy storage systems.

We specialize in this field for many years with advanced equipment,scientific management techniques,and excellent quality control which earn us customers all over the world.

Our factory has been evaluated, certified, and inspected by SGS Group. We aim to be a reliable battery supplier for long-term business relationships. All our batteries have passed international certifications, including UL, CE, ROHS, CB, UN38.3, MSDS, IEC, ISO9001 and others.

Certificate