21700 Batteries
Voltaplex offers 21700 batteries built for high-capacity systems that require consistent output and extended runtime. Applications like power tools, mobility platforms, and storage applications use these Li-ion cells specifically for their consistently reliable performance. Find your ideal Voltaplex 21700 batteries below to experience dependable performance.
Battery specifications:
- Model: INR-21700-P45B
- Manufacturer: Molicel
- Chemistry: INR
- Max. continuous discharge current: 45A
- Nominal capacity: 4500mAh
- Nominal voltage: 3.6 V
Voltaplex has your back
Never worry about quality when buying from Voltaplex. We make sure you have the latest, greatest cutting-edge battery, every time.
Price
18650 batteries are commodity cells, and as a wholesaler, we understand how important price is to your bottom-line. As such, we offer international shipping directly from Asia to save money in higher quantities.
Shipping
We offer worldwide shipping through trusted carriers including UPS, FedEx, and Special Line (Delivered Duty Paid - DDP) under Incoterms 2010. If you require alternative shipping terms, such as Delivered at Place (DAP), or specific carriers, please contact us for a customized quote here.
21-day full refund
All battery cell orders fall under our 21-day full refund policy to allow ample time to test for authenticity and performance.
Quality guarantee
Voltaplex values long-term relationships with clients and encourage our clients to performance test cells against official manufacturer specification sheets.
In Asia, 18650 batteries are binned by quality into A, B, and lower bins. C-bin batteries are often recycled from battery packs. Lower bin batteries will underperform and may be dangerous.
We will only provide A Grade cells, unless specifically required to otherwise, for example, some clients may prefer Grade B Chinese cells for low-cost ESS projects. We can also confirm batch-date code, run testing (like impedance/voltage/capacity), and handle other IQC requirements.
Note: Loose cells are not authorized or intended to be used as stand-alone, removable, rechargeable power sources for e-cigarette or vaping devices, or to be handled directly by consumers in any manner. Clients who inquire about loose cells must intend to manufacture battery packs with proper outer casing, PCM/BMS and protection functions and be able to provide documents to prove this.
Battery specifications:
- Model: INR-21700-P42A
- Manufacturer: Molicel
- Chemistry: INR
- Max. continuous discharge current: 45A
- Nominal capacity: 4200mAh
- Nominal voltage: 3.6 V
Download Molicel INR-21700-P42A Datasheet
Voltaplex has your back
Never worry about quality when buying from Voltaplex. We make sure you have the latest, greatest cutting-edge battery, every time.
Price
18650 batteries are commodity cells, and as a wholesaler, we understand how important price is to your bottom-line. As such, we offer international shipping directly from Asia to save money in higher quantities.
Shipping
We offer worldwide shipping through trusted carriers including UPS, FedEx, and Special Line (Delivered Duty Paid - DDP) under Incoterms 2010. If you require alternative shipping terms, such as Delivered at Place (DAP), or specific carriers, please contact us for a customized quote here.
21-day full refund
All battery cell orders fall under our 21-day full refund policy to allow ample time to test for authenticity and performance.
Quality guarantee
Voltaplex values long-term relationships with clients and encourage our clients to performance test cells against official manufacturer specification sheets.
In Asia, 18650 batteries are binned by quality into A, B, and lower bins. C-bin batteries are often recycled from battery packs. Lower bin batteries will underperform and may be dangerous.
We will only provide A Grade cells, unless specifically required to otherwise, for example, some clients may prefer Grade B Chinese cells for low-cost ESS projects. We can also confirm batch-date code, run testing (like impedance/voltage/capacity), and handle other IQC requirements.
Note: Loose cells are not authorized or intended to be used as stand-alone, removable, rechargeable power sources for e-cigarette or vaping devices, or to be handled directly by consumers in any manner. Clients who inquire about loose cells must intend to manufacture battery packs with proper outer casing, PCM/BMS and protection functions and be able to provide documents to prove this.
AUTHENTIC GRADE-A BATTERIES GUARANTEE.
Note: LG 21700 cells are not authorized or intended to be used as stand-alone, removable, rechargeable power sources for e-cigarette or vaping devices, or to be handled directly by consumers in any manner. Clients who inquire about LG loose cells must intend to manufacture battery packs with proper outer casing, PCM/BMS and protection functions and be able to provide documents to prove this.
Battery specifications:
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- Model: INR21700 M50LT
- Manufacturer: LG Chem
- Chemistry: INR
- Nominal capacity: 5000mAh
- Nominal voltage: 3.69V
- Maximum Charge Voltage: 4.2V
Download LG Chem 21700LT Datasheet
Voltaplex has your back
Never worry about quality when buying from Voltaplex. We make sure you have the latest, greatest cutting-edge battery, every time.
Price
18650 batteries are commodity cells, and as a wholesaler, we understand how important price is to your bottom-line. As such, we offer international shipping directly from Asia to save money in higher quantities.
Shipping
We offer worldwide shipping through trusted carriers including UPS, FedEx, and Special Line (Delivered Duty Paid - DDP) under Incoterms 2010. If you require alternative shipping terms, such as Delivered at Place (DAP), or specific carriers, please contact us for a customized quote here.
21-day full refund
All battery cell orders fall under our 21-day full refund policy to allow ample time to test for authenticity and performance.
Quality guarantee
Voltaplex values long-term relationships with clients and encourage our clients to performance test cells against official manufacturer specification sheets.
In Asia, 18650 batteries are binned by quality into A, B, and lower bins. C-bin batteries are often recycled from battery packs. Lower bin batteries will underperform and may be dangerous.
We will only provide A Grade cells, unless specifically required to otherwise, for example, some clients may prefer Grade B Chinese cells for low-cost ESS projects. We can also confirm batch-date code, run testing (like impedance/voltage/capacity), and handle other IQC requirements.
Powering Demanding Systems with 21700 Li-Ion Cells
21700 Li-ion cells support high energy output with stable discharge over long periods of use. Their increased cell capacity reduces the number of units needed in large builds, improving system efficiency.
These cells perform well under continuous load and maintain voltage integrity across extended cycles.

Applications and Industries That Rely on 21700 Cells
Engineers use 21700 cells in systems that require high-capacity output in a compact footprint.
The extended runtime and consistent discharge make them ideal for commercial and industrial builds where performance and reliability matter.
Some typical applications for these powerful batteries include:
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Battery packs for electric transport and mobility systems
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Commercial energy storage used in grid and off-grid systems
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Cordless power tools in manufacturing and field service
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High-output lighting for industrial and emergency use
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Medical and diagnostic equipment that requires continuous operation
Voltaplex proudly supplies 21700 battery cells in bulk to meet the needs of these sectors at scale.
21700 Battery FAQs
Learn more about our 21700 batteries for sale through our most frequently asked questions below.
What’s the difference between 21700 batteries and 18650 batteries?
21700 batteries are larger and offer higher capacity than 18650 cells, which allows for fewer cells per pack and increased runtime in high-demand systems.
Do 21700 battery cells require specific holders or enclosures?
Yes. Due to their size, 21700 battery cells must be used with holders and hardware designed specifically for the 21mm x 70mm format.
Can I purchase 21700 lithium cells in bulk with matching specs?
Voltaplex supplies bulk 21700 batteries for sale with matched internal resistance and capacity for use in packs that require uniform cell behavior.
Are 21700 Li-ion cells suitable for custom pack assembly?
Yes! 21700 Li-ion cells are used in custom pack builds due to their energy density and cylindrical factor, which supports modular configurations.
Design Benefits of 21700 Battery Cells
21700 battery cells offer greater energy density per unit, simplifying battery architecture and reducing pack size. Their consistent cylindrical dimensions support automated assembly and tighter stacking configurations.
Compared to smaller cells, 21700 lithium cells reduce internal wiring and pack complexity.
These advantages help engineers create clean, scalable layouts for power systems with fewer parts and lower thermal load.

Quality and Supply for Bulk 21700 Batteries
Voltaplex sources 21700 batteries directly from verified manufacturers with consistent production capabilities. Every batch is reviewed for traceability, labeling accuracy, and lot-specific data.
Our bulk 21700 batteries ship with storage, handling, and safety compliances. We maintain stable inventory and support recurring orders with predictable lead times, helping commercial teams manage long-term production and integration schedules without delays.
Partner With Voltaplex for the Right 21700 Batteries
Get pricing and availability for 21700 batteries. Voltaplex provides detailed specifications, sourcing information, and support for high-volume orders, ensuring you have everything you need to buy with confidence.
Submit a quote request to connect with our team and secure the cells you need for your next production run.
Request Your Custom Quote