Functional Positioning Designed for Precise Power Needs
This 18650 2S1P configuration lithium ion battery pack is tailored for engineers and system integrators who require a stable 7.4V power solution with moderate capacity (2200mAh) in a compact form factor. Incorporating a built-in PCB, the pack safeguards devices against overcharge, overdischarge, and short circuits, addressing key safety concerns in professional electronic designs. Its 2-cell-in-series layout meets voltage specifications for a range of portable and embedded applications, facilitating seamless integration into custom lithium battery packs and product prototypes where reliability and compliance are paramount.
Technical Specifications Enable Robust Performance and Safety
Featuring a nominal voltage of 7.4V with a 2200mAh capacity, this li-ion battery pack employs a CC/CV charge method, supporting a charge cut-off at 8.4V and discharge cut-off at 5.5V to optimize battery life. Dimensioned at 68×37.5×19.5 mm and weighing approximately 96 grams, it offers an 800+ cycle life, with continuous discharge up to 1C and peak discharge reaching 3C. The integrated PCB provides essential protection against thermal and electrical risks, while CE, RoHS, UN38.3, and IEC62133 certifications underline its conformance to international safety standards, making it a reliable choice among wholesale lithium ion battery pack suppliers and users.
Industry Relevance and Integration Versatility
This li ion battery pack is engineered to support diverse sectors including handheld electronic devices, hobbyist RC models, and industrial IoT equipment requiring a safe and consistent 7.4V supply. It is conducive to replacement and maintenance demands where long-term cycle stability and protection are critical. Additionally, the pack’s optimized dimensions and protection system facilitate integration into custom lithium-ion battery pack designs, enabling manufacturers to meet specific client requirements while adhering to regulatory and operational standards. Its certified quality and performance provide a dependable power source for professional OEMs and battery pack manufacturers worldwide.

| Item | Specifications | Remark |
| Model No. | 18650-2200-2S1P | |
| Nominal Voltage | 7.4V | |
| Nominal Capacity | 2200mAh | @0.2C standard charge&discharge |
| Max Dimensions | 68*37.5*19.5mm | L*W*H |
| Cycle Life | ≥800 times | |
| Charge Method | CC/CV with professional charger | |
| Charge Cut-off Voltage | 8.4V | |
| Discharge Cut-off Voltage | 5.5V | |
| Standard Charge Current | 0.2C | |
| Standard Discharge Current | 0.2C | |
| Max Continuous Charge Current | 1C | |
| Continuous Discharge Current | 1C | |
| Peak Discharge Current | 3C | |
| Recommended Operation Ambient Temperature | Charge: 0~45℃ Discharge:-20~60℃ | |
| Storage Temperature | -20~25℃ | 12 months |
| -20~45℃ | 3 months | |
| -20~60 ℃ | 1 month | |
| Internal Resistance | ≤100mΩ | |
| Weight | Approx. 96g |



Use Scenarios
Powering Handheld & Portable Electronics
In the portable electronics industry, devices such as handheld scanners, portable measurement tools, and rugged field instruments demand a consistent 7.4V power source with enhanced safety features. This battery pack’s integrated PCB ensures compliance with safety regulations while delivering stable voltage under variable load conditions. Its compact size and reliable cycle life support workflows involving field maintenance and quick replacement, facilitating uninterrupted device operation. Professionals benefit from this li-ion battery pack’s compatibility with existing battery management systems, ensuring seamless integration into design specifications and operational protocols.
Application in Custom RC Models and Hobby Devices
Within the hobbyist and recreational device market, this 7.4V li ion battery pack addresses the critical need for compact, high-performance power sources in RC cars, drones, and model aircraft. Its high peak discharge capability supports bursts of power required for responsive motor control, while PCB protection mitigates risks associated with intensive usage cycles. Integration into custom lithium-ion battery pack configurations empowers manufacturers and designers to tailor energy solutions to specific device form factors, enhancing safety and performance. This facilitates efficient assembly lines and after-sales service processes in product development environments.
What technical certifications does your 18650 2S1P battery pack have?
Our 18650 2S1P Li-ion battery pack complies with key international standards, including CE, RoHS, UN38.3, IEC62133, and MSDS. These certifications guarantee that our products meet stringent safety and quality requirements expected from a professional lithium ion battery pack manufacturer.
Can you customize the 18650 battery pack specifications to fit specific device requirements?
Yes, we offer customization services for our custom lithium battery packs to meet your exact voltage, capacity, and protection needs. Our engineering team works closely with you to develop reliable li-ion battery pack solutions tailored for your industrial or commercial applications.
How should I properly charge and maintain this 7.4V battery pack with PCB?
We recommend charging the battery pack using CC/CV method with a standard 0.2C charge current, not exceeding the 1C max continuous charge to ensure safety. Avoid discharging below 5.5V and store between -20°C and 25°C to maintain optimal cycle life and performance.
What logistics and warranty options are available when purchasing your lithium ion battery packs?
We support global distribution with strict quality control for each lithium ion battery pack. All packs come with a 1-year warranty covering manufacturing defects, providing peace of mind for your long-term business use and ensuring continuous supply reliability.