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

If you have an ItsyBitsy or Pro Trinket, this LiPoly backpack makes it easy to build portable projects by providing a simple way to add a rechargeable Lithium Ion or Lithium Polymer battery.

This backpack sits on top of the Pro Trinket or ItsyBitsy board and allows for a LiPoly/LiIon battery to plug directly in. When the USB port of the microcontroller board is powered, the battery recharges automatically. When the USB is unplugged, the microcontroller runs off the battery.

Ideal for 3.3V Pro Trinket & ItsyBitsy as the battery voltage (3.7-4.2V) is regulated down. However, 5V microcontrollers generally can run off the battery voltage directly.

• Comes assembled and tested
• Uses 5V input via the Pro Trinket or ItsyBitsy USB port
• Charges single Lithium Ion/Polymer 3.7/4.2V batteries
• 100mA charge current (adjustable to 500mA by soldering a jumper)
• Red and green LEDs indicate charging status
• Includes pads to add a power switch

Note: For use with Adafruit LiPoly/LiIon batteries only. Batteries and main microcontroller boards sold separately.

Dimensions: 15mm x 17mm x 2mm; Height with JST: 7mm; Weight: 1.3g.