Datasheet

rate for faster charging. Easy! Just solder the jumper on the bottom of the board as shown
here:
LEDs
There's two LEDs on the backpack
CHG red LED - This LED is lit when the battery is being charged.
DON green LED - this LED is lit when the battery is done being charged (charge
complete)
When the backpack is installed on the Pro Trinket, but not charging, you may notice these
LEDs faintly glowing. That's a side effect of a slight current leakage through one of the
protection diodes on the Pro Trinket. It's not harmful at all and you can basically ignore it.
Optional Switch
© Adafruit Industries
https://learn.adafruit.com/adafruit-pro-trinket-lipoly-slash-liion-
backpack
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