Amid the continuous upgrade of health consumption, electric shoulder belts have become daily health care devices for office workers, sports enthusiasts and the elderly, thanks to functions such as hot compress, massage and shoulder-neck muscle relaxation. As a wearable physiotherapy device in close contact with the body, the battery life, massage strength, hot compress stability and wearing safety of electric shoulder belts depend entirely on the performance of the built-in power cell. Focusing on the application characteristics of electric shoulder belts—thin and wearable design, continuous discharge and safe body contact—BPI launches a dedicated li-polymer battery solution. With stable output, long battery life, high safety and flexible customization, it provides reliable power support for electric shoulder belts, helping products achieve comfortable experience and durable quality.
Electric shoulder belts are designed for close-fitting wearing, imposing strict requirements on battery thickness, weight and flexibility. BPI optimizes cell size and packaging technology for shoulder belt structures, with the flagship 102030 li-polymer battery, and provides both standard models and full-spec customization to perfectly meet various product structure needs:
102030: 10×20×30mm, 3.7V, moderate thickness and sufficient capacity. Fits the built-in space of mainstream electric shoulder belts, delivers long battery life without bulging or pressing the shoulder.
Standard models: 502030 is in stock; customized models such as 401730, 453640 are available upon request. Thickness: 4–6mm, capacity: 200–680mAh, quickly meeting differentiated selection for ultra-thin portable, basic massage and high-power hot compress versions.
The cells adopt pouch packaging, with regular shape and good toughness. They can bend with the shoulder belt, providing no foreign body sensation during long-term wearing, balancing comfort and structural adaptability.
1. Stable massage without stuttering: Continuous and smooth current output ensures even motor vibration strength, no fluctuation, for more consistent relaxation effect.
2. Constant hot compress without sudden drop: Supports 2–3C discharge capability, meeting the current demand of heating sheets, maintaining constant temperature and avoiding hot compress failure due to insufficient power.
3. Long-lasting battery life: 102030 cell reaches 1000mAh, supporting 3–5 hours of continuous massage or 2–4 hours of hot compress per full charge, satisfying all scenarios such as office, home care and outdoor use.
Battery cycle life directly determines the service life and after-sales cost of electric shoulder belts. BPI dedicated cells for electric shoulder belts adopt a high-stability material system, with ≥800 charge-discharge cycles and stable capacity retention after long-term use:
No attenuation or swelling after repeated charging/discharging, adapting to high-frequency use.
Reduces battery replacement frequency, lowering user cost and brand after-sales pressure.
Excellent cell consistency ensures balanced discharge in parallel use, improving overall reliability.
Electric shoulder belts are in close contact with shoulder and neck skin, so safety is a non-negotiable core indicator. BPI implements full-process safety control from cell to protection board, with built-in multi-protection mechanisms:
Basic protection: Quadruple protection against overcharge, overdischarge, overcurrent and short circuit, avoiding abnormal charging and power risks.
Temperature control: Equipped with NTC thermistor, real-time cell temperature monitoring, automatic power-off at high temperature.
Structural safety: Stable chemical system of pouch cells, no risk of hard-shell rupture. Passed international safety certifications including UN38.3, IEC62133 and CE, complying with safety standards for wearable health appliances.
Size customization: Free adjustment of cell thickness, width and length according to internal space, for seamless integration without damaging wearing feel and appearance streamline.
Capacity customization: Optimize energy density ratio within limited volume, precisely balancing thin wearing and long battery life.
Electrical customization: Customizable wire outlet direction, cable length, terminal interface, protection board position and functions, perfectly matching different mainboards and assembly processes.
Shape customization: Customized special shapes such as curved, narrow-long and ultra-thin, better fitting the curved surface and narrow layout of shoulder belts.
Combination customization: Supports single-string 3.7V standard solution, or multi-string combinations for high-power hot compress and high-strength massage models.
| Model | Dimensions (mm) | Nominal Voltage (V) | Capacity (mAh) | Cycle Life | Application |
| 102030 | 10×20×30 | 3.7 | 1000 | ≥800 | Mainstream electric shoulder belts |
| 502030 | 5×20×30 | 3.7 | 250 | ≥800 | Basic massage models |
