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The 21700 cell covers 21700 3.0Ah LiFePO4 cell and 21700 3.0Ah/4.0Ah/4.5Ah/5.0Ah NMC cell with max. discharge current from 2C to 11C. With High Energy Density, the cell can meet various EV applications requiring bigger capacity in limited space, and meanwhile still hold the excellent discharge capability. In terms of quality, it is a powerful competitor to replace existing big brands cells, while in terms of price, it’s a winner. It widely used for E-bikes, E-motorcycles.
Product Description
21700 Battery Cells are advanced cylindrical rechargeable lithium batteries designed to deliver higher energy density, longer runtime, and improved thermal performance compared with traditional formats. With a diameter of 21mm and length of 70mm, 21700 cells strike an optimal balance between capacity, power output, and safety, making them one of the most popular choices for modern industrial, commercial, and energy storage applications.
As a professional Industrial Rechargeable Batteries Cells supplier, we provide high-quality lithium battery solutions widely used in electric vehicles, energy storage systems, power tools, and intelligent equipment.
1. Capacity and density both increase, reducing assembly costs
Single-cell capacity 3000-5000mAh, approximately 30%-50% higher than 18650, with the same system reducing the number of cells by 20%-30% and simplifying the PACK design, lowering BMS and structural component costs.Energy density 180-260Wh/kg, supporting 2C-11C fast charging and high-current discharge. The lithium-ion system can sustain discharge at 25-50A, and the lithium iron phosphate has a cycle life of ≥3000 times (80% DOD). The terminal replacement frequency is significantly reduced.
2. Standardization and flexible integration, suitable for multiple production lines
Steel shell packaging + standardized size, compatible with mature 18650 production lines and automated assembly, production efficiency increased by 20%+, stronger consistency.Support for series/parallel expansion, suitable for 12V/24V/48V systems, with BMS compatibility guidelines and PACK cooling solutions to solve issues of high-current thermal management and consistency.
3. Full-chain safety protection, reducing application risks
Steel shell + explosion-proof valve + ceramic separator + PTC protection, comprehensive protection against overcharge/overdischarge/overcurrent/short circuit; lithium iron phosphate thermal stability ≥270℃, lithium-ion systems through UL/UN38.3 certification.Wide temperature operation (-20℃ to 60℃), self-discharge rate ≤1%/month, suitable for outdoor and long-term standby, reducing maintenance frequency.
4. Cost and customization flexibility
Support for capacity, protection board, terminals, and packaging customization, suitable for regional and brand requirements.Provide sample testing, solution design, and bid support to shorten product launch cycle.
5. Full-cycle service, reducing cooperation risks
Guarantee 2 years, capacity degradation ≤20%; 24-hour technical response, national service centers coverage, assisting in solving production and after-sales problems.Support OEM/ODM, flexible production, controllable delivery time, suitable for batch and small-batch customization.
| Model No. | Chemistry | Nominal Capacity(mAh) | Rated Voltage(V) | Max.Continuous Discharge Current | Max. Charge Current | Weight(g) | DataSheet |
| MATE21700SP3.0 | LiNiCoMn | 3000 | 3.6 | 10C | 6C | 67 | |
| MATE21700SP4.0 | LiNiCoMn | 4000 | 3.6 | 11C | 6C | 67 | |
| MATE21700MP4.8 | LiNiCoMn | 4800 | 3.6 | 3C | 2.4C | 69 | |
| MATE21700MP5.0 | LiNiCoMn | 5000 | 3.6 | 2C | 2.5C | 69 | |
| MATE21700MP4.5 | LiNiCoMn | 4500 | 3.6 | 3C | 1C | ||
| MATE21700MP3.0 | LiFePO4 | 3000 | 3.2 | 3C | 1.5C | 70 |
To meet the differentiated needs of customers from various industries, we have developed two exclusive solutions covering the entire service chain from solution design to after-sales maintenance:
1. New Energy Vehicle Battery Solution
Problem-solving: For passenger cars, light commercial vehicles, etc., we offer an integrated solution of 21700 cells + battery module + BMS; optimize the consistency screening of cells to ensure the synchronous cycle life of the module; customize liquid cooling / air cooling thermal management systems to solve the problem of uneven heat dissipation in the battery pack, improving the vehicle's range and safety performance.
Value-added services: Assist customers in completing the matching and debugging of battery packs and the entire vehicle, provide CCC, UN38.3, IEC62619 and other certification technical support, and shorten the product launch cycle.
2. Outdoor Energy Storage and Household Energy Storage Solution
Problem-solving: For portable outdoor power supplies and household energy storage systems, we offer high energy density 21700 cell modules; support flexible combination of series and parallel, suitable for different capacity requirements of 500Wh - 10kWh; provide intelligent BMS and remote monitoring functions through APP to achieve fast charging and discharging, peak-valley electricity price arbitrage, emergency power supply, etc.
Value-added services: Provide complete design solutions for energy storage products, and offer 7×24-hour remote fault diagnosis after-sales service to ensure the stable operation of the system.
Electric Vehicles and Transportation
21700 battery cells are widely used in electric cars, electric buses, and electric motorcycles, providing high energy efficiency and stable power.
Energy Storage Systems
Used in residential, commercial, and industrial ESS for solar and wind energy storage.
Power Tools and Industrial Equipment
Ideal for cordless drills, electric saws, and other high-power tools requiring strong discharge performance.
Robotics and Automation
Integrated into AGVs, industrial robots, and smart manufacturing systems.
Consumer and Professional Electronics
Used in portable power stations, professional lighting systems, and advanced electronic devices.
The 21700 battery cells are becoming the mainstream choice for high-power / long-range power supplies, meeting the upgrading needs of multiple industries. We have served several leading tool, energy storage and transportation customers, and our products have passed batch verification. Our reputation and delivery capabilities are reliable.We sincerely invite you to become a strategic partner. We will provide competitive prices, flexible customization services and full-process technical support to help you quickly launch differentiated products. If you need sample testing, technical parameter manuals or customized solution quotations, please feel free to communicate with us at any time!
As a reliable 21700 Battery Cells supplier, we focus on:
Strict quality control and performance testing
High cell consistency and reliability
Stable long-term supply capability
Flexible customization services
Competitive pricing and professional technical support
Our 21700 battery cells are designed for demanding environments, ensuring high performance, safety, and long-term stability.
Our products meet multiple international safety and performance standards, including:
UN38.3 Transportation Safety Certification
IEC 62133 / IEC 62619 Compliance Support
UL Safety Testing Compatibility
RoHS & REACH Environmental Standards
Each batch undergoes rigorous electrical, thermal, and cycle-life testing to ensure consistency, safety, and long-term reliability.
Strict Quality Control System
We implement a full-process quality inspection system from raw materials to final shipment:
Incoming material inspection (ICQ)
In-process quality control (IPQC)
Final performance testing (FQC)
Capacity grading & internal resistance matching
High-temperature and overcharge safety testing
This ensures high cell consistency, reduced failure rates, and stable performance in PACK assembly.
To guarantee safe transportation and storage, we provide standardized export packaging solutions:
Anti-static and anti-vibration packaging design
UN-certified dangerous goods packaging (as required)
Individual cell insulation protection
Custom pallet and carton solutions for OEM orders
We support flexible logistics solutions including air freight, sea freight, and express delivery to meet urgent project timelines.
Reliable Supply & Delivery Capability
We maintain stable production capacity and supply chain management to support both small-batch sampling and large-scale production.
Fast sample delivery support
Stable bulk order production capacity
On-time delivery rate optimization system
OEM/ODM flexible scheduling support
Technical Support & After-Sales Service
We provide full-cycle technical support to help customers accelerate product integration and reduce development risk:
24/7 technical consultation response
Battery pack design and BMS matching support
Application engineering guidance
Failure analysis and optimization suggestions
Long-term cooperation service guarantee
With strict quality control, internationally recognized certifications, secure packaging, and responsive technical support, our 21700 battery cells deliver not only high performance, but also dependable supply assurance for global industrial applications.
