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156825 3.7V 16Mah Curved Lithium Polymer Ring Battery
3.7V 16mAh curved lithium polymer battery (156825) features an arc-shaped design, making it ideal for smart rings, wearable tech, and other compact applications requiring flexible, reliable, and ultra-thin power solutions.
Every battery gets capacity check before production to make sure it delivers as promised.
Smart Ring Battery – This curved lithium-polymer battery is made for wearable smart rings. It handles 300 charge cycles and still keeps 80% of its original capacity. Works with almost all smart rings out there.
| Specification | Details |
|---|---|
| Model | Apsenx-156825 Curved Ring Battery |
| Dimensions | 1.5 × 6.9 × 25 mm |
| Nominal Voltage | 3.7V |
| Capacity | 16mAh |
| Discharge Temperature Range | -20°C to 60°C |
| Charge Temperature Range | 0°C to 45°C |
| Cycle Life | >300 cycles |
| Applications | Smart rings, hearing aids, cameras, audio LED lights, robots, instruments, meters, etc. |
The 156825 ring battery lasts long with almost no self-discharge—no worries about losing power. Wide nickel tabs keep current stable and handle heat better.
Each battery is fully tested before leaving the factory. Apsenx supplies various shapes and sizes for smart wearables, and we can customize to fit your device.
Want a sample or custom battery? Contact us today.
Under normal use, it supports over 300 charge cycles and retains around 80% of its capacity even after extended use.
Charge within 0°C–45°C. Avoid extreme temperatures, which may affect battery life.
Designed for smart rings, earbuds, mini cameras, LED lights, and other small wearable or portable devices.
Yes. We can provide custom sizes, capacities, or shapes according to your requirements.
Yes. It uses a safe lithium polymer design and wide nickel strips for low heat and stable current output.
Contact our factory to request samples for testing or a quote for bulk orders.

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