7.4V 21700 Battery Pack
With over 15 years of expertise, CM Batteries specializes in manufacturing and customizing high-quality 7.4V 21700 battery packs for medical devices, emergency call systems, IoT systems, robotics, wireless equipment, and more.
Key Features of Our 7.4V 21700 Lithium-ion Battery Packs
- Certified Quality: ISO 9001-certified quality management ensures consistent performance and safety.
- Reliable brand 21700 cells (LG, Samsung, NRTL certified)
- Advanced protection circuits for safety and durability
- From concept to production, we provide end-to-end customization to meet your unique requirements.
Whether you need a compact battery for a portable medical device or a high-capacity pack for robotics, CM Batteries combines innovation, quality, and reliability to power your devices
Custom 7.4V 21700 Battery Pack Solutions
2S1P 7.4V 5000mAh 21700 Medical Devices Battery
Made of premium 21700 cells from LG and Samsung
Initial internal impedance ≤ 100mΩ
24-month warranty
2S1P 7.4V 5000mAh 21700 E-call System Battery
Made of premium 21700 cells from LG and Samsung
Dimension is 23x44x73mm
Integrated with SEIKO chips
2S2P 7.4V 10000mAh 21700 Battery Pack
Integrated into PCB with Passive Balance function
Application for medical device
Made of 4pcs verified 21700 NRTL cells
2S5P 7.4V 25Ah 21700 Battery Pack
High capacity with compact dimension
Application for Robots
Made of 10pcs 27100 reputation cells
Related Custom 21700 Li-ion Battery Pack Solutions
More Technical Articles on Custom 21700 Lithium-ion Battery Pack
Custom 7.4V 21700 Lithium Battery Pack FAQ
Can I use these batteries interchangeably,7.2V vs 7.4V.?
While both 7.2V and 7.4V batteries are based on 2-cell configurations (2S1P), they are not fully interchangeable due to differences in their nominal voltage and performance characteristics:
Can you use other cell models for battery pack design, or are you limited to 21700 cells?
Yes, we are not limited to 21700 cells. We can design battery packs using a variety of cell models, pls check this blog.
Do you provide waterproof or ruggedized battery packs?
Yes, we offer optional IP68-rated waterproof housing for applications requiring durability and protection against water, dust, and shock.
Do you provide certification for your 7.4V(7.2V) 21700 battery packs?
Yes, our battery packs can be certified to meet industry standards such as UL, CE, RoHS, and UN38.3 for safe transportation.
How can I ensure the battery pack I receive has the full rated capacity?
You will receive a test report with your order, showing the actual capacity and performance metrics of your battery pack.
Tailored Customization
Our design team can create custom battery designs for just about any device or machine.
Timely Delivery
Our efficient production and distribution process gets your product delivered in a timely manner.
Quality Guarantee
We stand by our products and guarantee you’ll be happy with your purchase.