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Bluetooth Headset Battery
Bespoke Bluetooth Headset Battery Solutions
Traditional batteries for Bluetooth headsets are typically limited to standard rectangular shapes with capacities ranging from 200mAh to 500mAh. However, because most high-end headsets feature round or oval earcups, rectangular cells often leave significant internal gaps, failing to utilize the device’s full volume.
Batteryswift’s custom-shaped batteries are designed to solve this inefficiency. Our cells are engineered to fit perfectly into the curved contours of your headset, eliminating wasted space and providing maximum battery capacity within the same footprint. Combined with our high-discharge rate and high-voltage technologies, we ensure your audio products deliver both long-lasting endurance and peak performance.
With Batteryswift, you can focus entirely on your product’s industrial design—we will handle the power system to ensure you get the highest energy density possible.
Batteryswift Bluetooth Headset Battery Features
Full Lifecycle Support: Seamless transition from rapid prototyping to large-scale serial production.
High Performance: Optimized high-voltage cells and high-discharge rate capabilities for premium audio drivers.
Maximized Capacity: Custom geometries (round, oval, curved) to utilize every millimeter of internal space.
Superior Safety & Weight: Lighter, safer, and more powerful LiPo technology tailored for wearables.
Complete Customization: Available in a vast array of bespoke shapes and sizes to match your specific ID.
Proven Reliability: Mature, high-quality power solutions trusted by global audio brands.
| Model NO. | Full ChargedVoltage | C-rate | Capacity | Shape | Application |
| BATFT5030027 | 4.2V | 3C | 300mAh | round | Bluetooth Headset |
| BATFT4035035 | 4.35V | 1C | 405mAh | round | Bluetooth Headset |
| BATFT4435035 | 4.2V | 1C | 450mAh | round | Bluetooth Headset |
| BATFT4535035 | 4.35V | 1C | 475mAh | round | Bluetooth Headset |
| BATFT4037036 | 4.35V | 1C | 495mAh | round | Bluetooth Headset |
| BATFT4635035 | 4.35V | 1C | 480mAh | round | Bluetooth Headset |
High-End Battery Solutions for Bluetooth Neckband Headsets
Bluetooth neckband headsets are the preferred choice for sports enthusiasts and users on the go. By integrating the battery into the neck cord, designers can maximize internal space to provide extended battery life. This design also shifts the weight from the ears to the neck, making the choice of a lightweight and slim power source critical for a premium wearer experience.
Batteryswift’s ultra-thin and ultra-narrow LiPo batteries, with widths starting from just 6 mm, are specifically engineered to fit seamlessly into the slim housings of neckband devices. We offer high-energy-density cells that provide the endurance users demand without adding unnecessary bulk.
Beyond the cell itself, Batteryswift provides integrated engineering support. We can help design and customize your PCM (Protection Circuit Module) and BMS (Battery Management System) to ensure the power system meets your exact safety and performance requirements.
Batteryswift Neckband Battery Features
Stability & Safety: Mature manufacturing processes that ensure long-term reliability for high-usage sports gear.
Ultra-Narrow Form Factor: Widths as slim as 6 mm, ideal for integration into ergonomic neck cord designs.
Lightweight Engineering: High specific energy density to reduce the physical load on the wearer’s neck.
Bespoke PCM/BMS Design: Customized protection circuits tailored to your specific charging and safety protocols.
Flexible Customization: Adjustable lengths and capacities to match your headset’s unique structure.
Ultra Narrow Batteries List
| Model No. | Voltage | C rate | Capacity | Thickness | Width | Length | Shape |
| BATFT5811047 | 4.2V | 20C | 200mAh | 5.8mm | 11mm | 47mm | Rectangular |
| BATFT6011047 | 4.2V | 15C | 220mAh | 6.0mm | 11mm | 47mm | Rectangular |
| BATFT3811033 | 4.35V | 1C | 100mAh | 3.8mm | 11mm | 33mm | Rectangular |
| BATFT4009042 | 4.2V | 1C | 125mAh | 4.0mm | 9mm | 42mm | Curved |
Why Batteryswift Shaped Batteries are the Right Choice for Your Smartwatch
- Optimized for Wearables: Designed for sports and health-tracking devices where lightness and comfort are paramount.
- Maximum Space Utilization: Our rectangular, curved, and D-shaped batteries eliminate “dead space” within the watch dial.
- Enhanced Capacity: Better fit means more power—boosting battery life without increasing device thickness.
- Superior User Experience: Deliver a sleek, high-performance product that users love to wear all day.
Partner with Batteryswift today for bespoke power solutions that fit your vision.
| Model | Charging Voltage | Discharge Rate | Rated Capacity | Form Factor | Application |
| BATFT4020049 | 4.35V | 1C | 450mAh | Rectangular | Smartwatch |
| BATFT3824038 | 4.35V | 1C | 410mAh | Curved | Smartwatch |
| BATFT3334012 | 4.35V | 1C | 95mAh | D-Shape | Smartwatch |