What is it?

The UNIT LiPo Battery Charger with Boost & I2C is a versatile module designed to charge LiPo batteries and convert them into a portable power source by boosting the battery voltage up to 27V. It features an I2C interface for monitoring battery charge percentage and voltage, making it ideal for portable IoT projects, wearables, and electronic prototypes.

Why did you make it?

Most electronic project need battery charger, monitoring battery and boost module.

What makes it special?

Key Features:

Charging Circuit: Utilizes the TP4056 for safe and efficient charging of 3.7V nominal (4.2V max) LiPo batteries.

Boost Converter: Incorporates the MT3608 to elevate the battery voltage up to 27V, with a maximum output power of 4W.

Battery Monitoring: Equipped with the MAX17048 for real-time monitoring of battery charge level and voltage via I2C.

Adjustable Charging Current: Selectable between 200mA and 1A through solder pads to accommodate various battery capacities.

Output Voltage Control: Features an adjustable potentiometer to set the desired output voltage, along with an enable switch to control the boost converter.

Qwiic/Stemma Compatibility: Includes a JST connector for seamless integration with Qwiic-enabled devices, facilitating easy expansion and prototyping.