3.8V 90mAh Li-Polymer Battery Pack with NTC AS391520
Compact and reliable, this 3.8V 90mAh lithium polymer battery pack (model AS391520) features a built-in protection circuit and NTC thermistor for safe, temperature-monitored operation. Ideal for space-constrained portable electronics.
Description
Model AS391520 – Ultra-Slim LiPo Battery Pack
Voltage: 3.8V | Capacity: 90mAh (0.342Wh) | Size: 23.0×16.0x4.2mm
The AS391520 is a high-quality rechargeable Li-polymer battery pack engineered for modern portable devices. With a nominal voltage of 3.8V and 90mAh capacity (0.342Wh), it delivers stable power in an ultra-slim form factor.
This battery pack includes a protection circuit to prevent overcharge, over-discharge and short circuits, plus an NTC thermistor for real-time temperature monitoring. The 3-pin connector (1224H-03) and UL3302 AWG28 wires ensure easy integration into your device.
Technical Specifications
| Battery Type | Lithium Ion Polymer Battery |
| Part Number | AS391520 |
| Voltage @ Capacity | 3.8V @ 90mAh (0.342Wh) |
| Protection Circuit | Yes (PCM Included) |
| Thermistor (NTC) | Yes |
| Wires | UL3302 AWG28 30mm |
| Connector | 1224H-03 |
| Dimensions (L x W x T) | 23.0mm x 16.0mm x 4.2mm |
| 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
- ✔
Built-in Safety: Integrated protection circuit and NTC thermistor provide comprehensive safety protection. - ✔
Compact Design: 4.2mm ultra-thin profile fits perfectly into extremely tight device spaces. - ✔
Reliable Power: Stable 3.8V output and 90mAh capacity ensure consistent device performance. - ✔
Easy Integration: Pre-attached connector and wires simplify assembly and reduce production time.
Perfect For Applications
Smart watches, fitness trackers, health monitoring devices.
Bluetooth earbuds, mini speakers, compact handheld gadgets.
Wireless sensors, positioning trackers, smart home components.
Portable diagnostic tools and small monitoring equipment.
Customization Services (OEM/ODM)
We provide professional custom battery solutions to meet your specific project requirements:
- Capacity & Voltage: Customize power parameters to match your device’s exact needs.
- Connector & Wiring: Modify connector type and wire length for seamless integration.
- Form Factor: Adjust battery dimensions to fit unique device designs.
- Branding: Add company logo and custom labeling for OEM and ODM projects.
