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I am trying to power my Pi (3B) from 6 AA batteries, via an UBEC (rated 5V/3A). By itself, the UBEC is outputting some 4.94V.

But plugging the UBEC output into "GPIO" pins 4 and 6, m yPi does not seem to start correctly: the power does not stay consistently on, and I start hearing worrying "hissing" noises from the Pi.

Am I doing something incorrect ? Or what can I do to get more informations about a potential problem ?

Gnurfos
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1 Answers1

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By itself, the UBEC is outputting some 4.94V.

The Pi 3 needs at least 5.1 V to run correctly.

Kevin
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