Lithium Polymer Battery Series
Smart Ring Lithium Polymer Battery Cells
ASOL supplies smart ring lithium polymer battery cells in different sizes, capacities and tab configurations, with OEM/ODM customization available for specific device requirements.
Selection is based on the available enclosure, runtime target, load profile and charging design. Final dimensions and electrical requirements are confirmed for the selected configuration.
Product Overview
Smart ring battery selection begins with the usable internal envelope, ring curvature and space required by the PCB, sensors, antenna and charging components. The battery geometry, capacity and tab arrangement must work together with the device layout and electrical load.
Key Features
Compact Curved Format
Curved lithium polymer cell formats support space-constrained ring enclosures where a conventional rectangular pouch cell is unsuitable.
Multiple Size and Capacity Options
Representative models cover different thicknesses, widths, lengths and capacity ranges for varied device layouts and runtime targets.
Tab Configuration Options
Available polarity and fold-direction variants help align the cell tabs with the PCB position and assembly route.
Charging Compatibility
The charging circuit must match the approved 4.2 V or 4.35 V charge-limit specification of the selected cell version.
Available Models
The following six representative models illustrate the available range of thicknesses, dimensions, capacities and tab/fold orientation options. Additional models and custom configurations can be reviewed for your device.
| Model | Max. Dimensions (T × W × L, mm) | Available Tab / Fold Orientations | Minimum Capacity 4.2 V Charge Limit, 0.5C | Minimum Capacity 4.35 V Charge Limit, 0.5C |
|---|---|---|---|---|
| 120732 | 1.25 × 7.1 × 31 | A / B / C / D | 17 mAh | 19 mAh |
| 126825 | 1.25 × 6.9 × 25 | A / B / C / D | 13 mAh | 15 mAh |
| 150732 | 1.52 × 7.1 × 31 | A / B / C / D | 20 mAh | 22 mAh |
| 155625 | 1.52 × 5.6 × 25 | C / D | 12 mAh | 14 mAh |
| 180732 | 1.8 × 7.0 × 31 | C / D | 30 mAh | 34 mAh |
| 220732 | 2.2 × 7.1 × 31 | C / D | 34 mAh | 38 mAh |
Engineering note: 4.2 V and 4.35 V identify charge-limit categories; they are not nominal-voltage values. Capacity values are minimum capacities measured at 0.5C discharge. Orientation letters indicate available polarity and fold-direction variants; the final drawing, cell version and compatible charging design must be confirmed before selection.
Send your device drawing, available battery envelope, load profile, required runtime and preferred connection arrangement for a current model review.
OEM / ODM Customization
ASOL provides project-specific OEM/ODM support for smart ring battery integration. Custom requirements remain subject to technical feasibility and final specification confirmation.
Dimensions and Capacity
Cell dimensions and capacity targets are matched to the available battery envelope and required operating time.
Curvature and Mechanical Fit
Arc, outline and enclosure-fit requirements are defined from the device drawing or 3D mechanical information.
Tab Orientation and Connections
Polarity, tab direction, lead exit and feasible connection arrangements are specified for the intended assembly layout.
Charging and Electrical Requirements
The selected cell version is confirmed against the charging circuit, normal and peak current, and applicable protection requirements.
Applications
Smart Rings
Compact ring electronics requiring battery selection around a curved internal enclosure and tightly controlled component layout.
Wearable Electronics
Miniature wearable products where battery geometry, runtime and assembly integration must be considered together.
Compact Health Tracking Devices
Small tracking and monitoring devices requiring a battery configuration matched to the device design; final documentation and requirements are confirmed per project.
Frequently Asked Questions
What information is needed to select a smart ring battery?
Please provide the maximum available battery envelope or device drawing, required runtime or capacity target, normal and peak current, charging method, tab or lead direction, connection requirements and estimated quantity.
How do I choose between the listed smart ring battery models?
Compare the maximum thickness, width and length with the usable battery space, then confirm the required capacity, tab orientation and charging circuit. Final selection must use the current approved specification for the chosen cell version.
Can the dimensions, capacity or curved structure be customized?
ASOL supports OEM/ODM requirements for dimensions, capacity targets and curved geometry when technically feasible. A device drawing and electrical requirements are needed before the final configuration is confirmed.
Can tab orientation and electrical connections be customized?
Polarity, tab direction, lead exit and feasible connection methods can be specified for the ring structure and assembly process. The approved drawing must be confirmed before ordering.
Do 4.2 V and 4.35 V in the table mean nominal voltage?
No. They identify charge-limit categories for different cell versions, not nominal-voltage values. The charger must match the approved specification of the selected cell.
Does the series image represent every available model?
No. The image shows the curved form of the series and does not represent the exact dimensions or specification of every listed model.
Project Inquiry
Request a Smart Ring Battery Review
For a useful model recommendation, please provide:
- Device drawing or maximum battery envelope
- Capacity or runtime target
- Normal and peak current
- Charging method
- Required tab or lead direction
- Estimated project quantity
