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Product Description: 3.3V Li-Pol Battery Charging Module bq25185 USB Type-C / DC / Solar Panel - Adafruit 6092
The Adafruit bq25185 is a versatile charging and power module designed for mobile projects and IoT devices. The module charges Li-Po batteries using USB Type-C, a DC power adapter, or a solar panel , while also providing a regulated 3.3V output for electronics . Using the bq25185 and the TPS62569 converter, the module offers high energy efficiency and a Power Path function that intelligently manages device power and battery charging. Designed for ease of integration, the board provides two power outputs: a regulated 3.3V and a Power Path output from 3.0V to 4.5V, allowing it to power a wide range of embedded devices and microcontrollers.
3.3V bq25185 Li-Pol Battery Charging Module USB Type-C / DC / Solar Panel - Adafruit 6092. 
The Adafruit bq25185 is a versatile charging and power module designed for mobile projects and IoT devices.Special features
- Supports multiple power sources: USB Type-C, DC, and solar panels
- bq25185 charging system: efficient charging of Li-Pol batteries
- TPS62569 converter: stable 3.3V output with up to 1A capacity
- Power Path function: power your device and charge the battery simultaneously
- Intelligent solar panel operation: MPPT-like energy optimization
- Adjustable charging current: 1A by default or 500mA by changing the jumper
- Stabilized outputs: maximum 4.5 V and 3.3 V
- USB Type-C connector: compatible with modern power supplies and computers
- Status LEDs: charging, error, and 3.3V output indication
- Compact design: ideal for mobile and IoT projects
- Mounting holes: easy installation in housings and devices
Practical applications
The module is ideal for battery-powered projects such as IoT devices, weather stations, monitoring systems, and mobile embedded systems. Its ability to interface with solar panels allows it to be used in field installations where access to traditional power is limited. The stabilized 3.3V output allows for direct powering of microcontrollers, communication modules, and sensors, eliminating the need for additional converters. The Power Path function further extends battery life through intelligent energy flow management.
Technical specifications
- Charging system: bq25185
- Converter: TPS62569
- Battery type: Li-Pol / Li-Ion
- Minimum battery capacity: 500 mAh
- Power inputs: USB Type-C, DC, solar panel
- DC/solar input voltage range: 5V to 18V
- Recommended solar panel voltage: 5V to 7V
- Charging current: 1 A (default) or 500 mA
- Power Path Output: 3.0V to 4.5V, up to approximately 1A
- Stabilized output: 3.3 V, up to 1 A
- USB Interface: USB Type-C with 5.1kΩ CC resistors
- LED indication: charging, error, active 3.3 V output
- Additional features: Enable pad to disable the 3.3V converter
- Battery connector: JST PH 2-pin
- Dimensions: 30.2 x 19.0 x 10.0 mm
- Weight: 3.6 g
Kit contents
- Adafruit bq25185 module
The system allows you to charge Li-Po batteries using USB Type-C, a DC power supply or a solar panel, while providing a stabilized 3.3 V output. Useful links |
