Alternative Power Options
The two primary ways for powering a feather are a 3.7/4.2V LiPo battery plugged into
the JST port or a USB power cable.
If you need other ways to power the Feather, here's what we recommend:
For permanent installations, a 5V 1A USB wall adapter() will let you plug in a
USB cable for reliable power
For mobile use, where you don't want a LiPoly, use a USB battery pack!()
If you have a higher voltage power supply, use a 5V buck converter() and wire it
to a USB cable's 5V and GND input()
Here's what you cannot do:
Do not use alkaline or NiMH batteries and connect to the battery port - this will
destroy the LiPoly charger and there's no way to disable the charger
Do not use 7.4V RC batteries on the battery port - this will destroy the board
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©Adafruit Industries Page 36 of 263
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