Adafruit LiIon/LiPoly Backpack Add-On for Pro Trinket/ItsyBitsy

This compact LiPoly backpack efficiently elevates your portable projects, seamlessly integrating with your ItsyBitsy or Pro Trinket. It minimizes the need for multiple boards by snugly sitting atop your microcontroller PCB.

Benefits:

• Automated battery recharge when USB-powered
• Simple battery switch-over when USB is unplugged
• LED indicators for charge status: red for charging, green when ready

Specifications:

• 100mA default charge current, adjustable to 500mA
• Compatible with 3.3V and 5V microcontrollers
• Supports Adafruit LiPoly/LiIon batteries

Example usage: Connect it to a 3.3V Pro Trinket for regulated power, or overclock a 5V microcontroller with ease. This backpack charges efficiently in three stages and supports user-installed switches.

Note: Battery, Pro Trinket, and ItsyBitsy not included. Ensure protective tape against shorting. Variations in JST connector color may occur, and slight LED glow is typical due to reverse-leakage current.