21700 Pack Battery 3.7v 7.4v 11.1v 14.8v 22.2v Lithium Battery 3500mah 4400mah 5200mah 7800mah 8800mah Lithium Ion Battery Pack
21700 3S3P Lithium-ion Battery Pack
The 21700 3S3P lithium-ion battery pack is a professional battery module specifically designed for applications that require high energy density, reliable output power, and compact installation.
Using advanced 21700 cylindrical lithium-ion batteries, this battery pack offers advantages such as higher capacity, better thermal performance, and longer cycle life compared to traditional 18650 battery solutions.
The 3S3P configuration connects three battery cells in series and combines three parallel groups, achieving a balanced voltage output and capacity. It can be customized according to different application requirements, including voltage, capacity, battery management system (BMS) functions, connectors, and shell design.
The battery pack equipped with an intelligent battery management system (BMS) has multiple protection functions, including overcharge, overdischarge, overcurrent, short circuit, and temperature protection.
Designed specifically for global OEM customers, battery manufacturers, and equipment producers, the 21700 3S3P battery module can provide reliable power solutions for portable devices, power tools, robots, electric mobility, and energy storage applications.
21700 3S3P Lithium-ion Battery Pack Technical Specifications
| Item | Specification |
|---|---|
| Product Name | 21700 3S3P Lithium-ion Battery Pack |
| Battery Type | Rechargeable Lithium-ion Battery |
| Cell Format | 21700 Cylindrical Cell |
| Configuration | 3 Series 3 Parallel (3S3P) |
| Nominal Voltage | 10.8V / 11.1V |
| Full Charge Voltage | 12.6V |
| Capacity | Customized (Based on Cell Selection) |
| Energy | Customized |
| Cell Quantity | 9 Cells |
| Battery Chemistry | NMC Lithium-ion |
| Standard Capacity Range | 12Ah – 15Ah (Optional) |
| Charging Method | CC/CV |
| Charging Current | Customized |
| Discharge Current | Customized |
| BMS Protection | Over Charge / Over Discharge / Over Current / Short Circuit / Temperature |
| Communication | Optional UART / CAN / RS485 |
| Cycle Life | ≥500-1000 Cycles |
| Operating Temperature (Charge) | 0℃ ~ 45℃ |
| Operating Temperature (Discharge) | -20℃ ~ 60℃ |
| Storage Temperature | -20℃ ~ 45℃ |
| Connector | Customized |
| Housing | Customized |
| Certification | UN38.3 / MSDS / RoHS / CE |
| OEM/ODM | Supported |
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Why Choose 21700 3S3P Lithium-ion Battery Pack?
1. Higher Energy Density Compared with Traditional Battery Packs
The 21700 cell format provides higher capacity and improved energy efficiency compared with conventional battery designs.
Customer Benefits:
✓ Longer operating time
✓ Smaller product size
✓ Better product competitiveness
2. Reliable Power Performance
Designed for applications requiring stable and continuous energy output.
Customer Benefits:
✓ Consistent performance
✓ Reduced downtime
✓ Improved user experience
3. Customized Battery Solution
The battery pack can be optimized according to different equipment requirements.
Customization includes:
✓ Voltage adjustment
✓ Capacity expansion
✓ Connector selection
✓ BMS customization
✓ Structural design
4. Enhanced Safety Protection
The intelligent BMS continuously monitors battery status and protects the system during operation.
Customer Benefits:
✓ Safer charging process
✓ Longer battery lifespan
✓ Improved product reliability
5. Suitable for Multiple Applications
One battery platform can support different industries.
Applications:
✓ Portable Power Station
✓ Power Tools
✓ E-bike Battery
✓ Robotics
✓ Medical Equipment
✓ Industrial Devices
6. OEM/ODM Support for Global Brands
We provide complete battery customization services from cell selection to finished battery packs.
Customer Benefits:
✓ Faster product development
✓ Stable supply chain
✓ Professional technical support
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What products does YiFang offer?
YiFang specializes in batteries, chargers, battery packs, and power solutions, including Li-ion, LiMn (IMR), Ni-MH, and LiFePO₄ batteries.
Does YiFang provide OEM/ODM services?
Yes, we offer flexible OEM and ODM customization, including product design, specifications, and packaging to meet your exact requirements.
What industries use YiFang products?
Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.
What is YiFang’s production capacity?
YiFang operates its own factory with automated production lines, producing up to 100,000 units daily, ensuring consistent quality and timely delivery.
How can I contact YiFang for orders or inquiries?
You can contact us via our website inquiry form, email, or phone. Our team is ready to provide professional guidance and customized solutions.
What industries use YiFang products?
Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.
What industries use YiFang products?
Our products are widely used in e-cigarettes, UAVs, balance scooters, electric bikes, electronic equipment, toys, flashlights, and other commercial and industrial applications.
What warranty and after-sales support does YiFang offer?
We provide 6–12 months warranty, responsive customer support, and global insurance coverage for long-term reliability and customer peace of mind.
