Search the whole station
Factory-Direct | High-Quality | Multi-Application
3.7V 20Ah Curved Lipo Battery Smart Wearable Ring Battery
Compact Curved Power – 3.7V 20mAh capacity in a slim, arc-shaped profile for tight wearable spaces.
Wearable Optimized – Designed to fit smart rings, health trackers, and compact electronics seamlessly.
Custom Curvature – Adjustable shape to meet the structural needs of different wearable designs.
Tailored Solutions – OEM/ODM customization for capacity, connectors, and form factor.
Ready for Global Supply – Factory-direct bulk packaging ensures consistent quality and quick delivery.
The 150732 3.7V 20Ah curved polymer lithium battery is perfect for all kinds of wearables—smart rings, bracelets, Bluetooth headsets, heart rate monitors, pressure meters… you name it. Because it’s curved, we can tweak the shape, thickness, and bend to fit your device perfectly.
We love making custom batteries that match your product’s size, design, and performance needs. That’s our thing—so if you’ve got an idea, let’s talk!
It works great in smart rings, watches, bands, clothing, AR/VR gear—basically anything wearable that needs a small but powerful battery. The curved design helps you use every bit of space, giving you more capacity and longer battery life.
Want a sample or a custom battery for your project? Hit us up—we’re ready to make it happen.
| Specification | Details |
|---|---|
| Voltage | 3.7V |
| Capacity | 20–22mAh |
| Weight | 0.55g |
| Standard Charge Rate | 0.5C |
| Fast Discharge Rate | 1C |
| Dimensions (L × W × T) | 30.7 × 7.1 × 1.52 mm |
| Cycle Life | 500+ cycles |
| Outer Skin Color | Black (Silver optional/customizable) |
Ideal for smart rings, bracelets, smartwatches, health monitors, Bluetooth headsets, and other compact wearable electronics.
Yes, we can adjust the thickness and curve according to your device’s design to ensure a perfect fit.
Depends on the device’s power consumption. For most small smart rings, it can last a full day of monitoring.
Default is black. Silver or other colors can be customized according to customer requirements.
Yes, high safety with standard charge/discharge rates, fully tested for long-term wearable use.
We offer factory-direct bulk supply, perfect for B2B clients and OEM projects.
Buy high-quality 18650 3.7V 3000mAh lithium-ion rechargeable batteries for household devices, e-bikes, power tools, and more. Durable, long-lasting, and certified for safety. Customizable options. Perfect for wholesale and OEM orders.
Top-quality 18650 3.7V 3000mAh lithium-ion batteries ideal for electric scooters, power tools, cameras, and more. Long cycle life, stable performance, and customizable options. Fast shipping worldwide. OEM & ODM services available.
Wholesale ICR 18650 2200mAh 3.7V lithium batteries with optional customized packs. Supports external wiring and various wire leads to meet your project-specific needs.
18650 3.7V 1500mAh lithium-ion rechargeable batteries from China, ideal for flashlights, power banks, electric tools, and more. High capacity, long cycle life, full safety features, and customizable OEM/ODM services. Fast global shipping available.
Apsenx Lithum Battery,Custom Battery Pack Manufacturer
