Overview
The 740mAh 3.7V Lithium-Ion (LiPo) Battery is a high-density power source designed for space-constrained electronics. Despite its small 23mm x 28mm footprint, it offers a significant capacity boost over standard “coin” cells. Each battery comes with a built-in Protection Circuit Module (PCM), which prevents over-charging, over-discharging, and short circuits, making it safe for use in student projects and commercial prototypes alike.
Key Features
Ultra-Compact Profile: At only 10mm thick, it fits easily into slim 3D-printed enclosures.
Integrated Safety (BMS): On-board protection circuit ensures the battery cuts off before it gets damaged by low voltage.
Stable Power Delivery: Constant 3.7V output (4.2V at full charge) for consistent performance in microcontrollers and sensors.
High Energy Density: 740mAh capacity provides long run-times for low-power IoT devices and Bluetooth modules.
Technical Specifications
| Feature | Specification |
| Model Number | 102328 (or compatible) |
| Dimensions | 23mm (W) x 28mm (L) x 10mm (T) |
| Nominal Voltage | 3.7V |
| Full Charge Voltage | 4.2V |
| Capacity | 740 mAh |
| Discharge Rate | 1C (standard) |
| Protection | Over-charge, Over-discharge, Short Circuit |
| Weight | ~12g – 15g |
Popular Use Cases
Mini Drones: Lightweight power for micro-aviation.
Wearables: Ideal for DIY smartwatches or fitness trackers.
Wireless Sensors: Powering ESP32-C3 or Pi Pico nodes for days on a single charge.
Portable Audio: Perfect for small PAM8403 amplifier projects.
Reviews
Clear filtersThere are no reviews yet.