3.7V 90mAh Miniature Li-Po Battery Pack AS530924
This 3.7V 90mAh Lithium Polymer Battery (Model: AS530924) is a compact and reliable power source designed for the smallest electronic devices. With an energy capacity of 0.333Wh and a built-in protection circuit, this ultra-small battery ensures safe and stable operation. It features a 51021-03P connector for easy integration, making it an ideal choice for wearables, hearables, and other space-constrained applications.
Description
Model AS530924 – Ultra-Compact LiPo Battery Pack
Voltage: 3.7V | Capacity: 90mAh (0.333Wh) | Size: 27.0×10.0x5.4mm

Engineered for next-generation micro-electronics, this AS530924 Lithium Polymer Battery delivers essential power in an incredibly slim and lightweight package. Its miniature dimensions allow it to fit into the tightest spaces, while the integrated protection circuit safeguards against overcharge, over-discharge and short circuits. This 0.333Wh battery is the perfect power solution for designers seeking to maximize device functionality without compromising on size or weight.
Technical Specifications
| Battery Type | Lithium Ion Polymer Battery |
| Part Number | AS530924 |
| Voltage @ Capacity | 3.7V @ 90mAh (0.333Wh) |
| Protection Circuit | Yes (PCM Included) |
| Thermistor (NTC) | / |
| Wires | UL1571 AWG28 30mm |
| Connector | 51021-03P |
| Dimensions (L x W x T) | 27.0mm x 10.0mm x 5.4mm |
| Charge Current | 0.2C to 0.5C (Standard Charge) |
| Discharge Current | 0.5C to 1.0C (Continuous) |
| Storage Temperature | -20°C to +45°C |
Core Advantages
- ✔
Ultra-Compact Design: Tiny form factor makes it perfect for applications where space is at a premium. - ✔
Enhanced Safety: Integrated protection circuit ensures reliable performance and extends battery lifespan. - ✔
Plug-and-Play Integration: Included 51021-03P connector simplifies assembly and replacement, saving time and effort. - ✔
Lightweight Power: Provides efficient energy in a lightweight package, enhancing overall device portability.
Perfect For Applications
Smart rings, fitness trackers and smart glasses.
Wireless earbuds, hearing aids and other in-ear devices.
Portable health monitors, ingestible sensors and patch devices.
GPS trackers, smart cards and mini remote controls.
Micro drones and other small-scale hobby electronics.
Customization Services (OEM/ODM)
We understand that every project is unique. Our professional OEM and ODM services allow you to customize the AS530924 battery to meet your exact requirements:
- Connector Customization: Replace the standard 51021-03P with any connector that fits your design.
- Wire & Lead Modifications: Adjust wire type, length and routing to match your assembly process.
- Branding & Labeling: Add company logos, custom part numbers and specific regulatory marks.
- Capacity & Form Factor: Modify cell capacity or dimensions for high-volume projects.











