Datasheet

If you want to have an on/off switch for your project, it's a quick mod. The line from the
battery to the VBAT pin has a 0.1" breakout with a thin trace in between. Cut the trace
between the two outlined pins and solder a switch in place. The switch is current-carrying
so make sure it can handle the current draw you're expecting
© Adafruit Industries
https://learn.adafruit.com/adafruit-pro-trinket-lipoly-slash-liion-
backpack
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