There could be several ways to power the Dash Pro for my application.
Using a Li-Ion battery. These supply voltage 3.6v +/- and I expect
the Dash has a voltage regulator that accommodates such a battery;
in fact, some cellular modules expect this kind of power source
(high momentary current, 3.6v). I see that the Dash Pro has a
recharging chip (possibly something like a MAX1555) — can the Dash
Pro therefore be supplied with, e.g. a 5v source to recharge the
battery even as it continues to operate?
Using USB power. Can the Dash Pro run off a USB cable powered in
Using power from a Duino, Beaglebone, etc – perhaps 5v or 3.3v sources that
such devices often provide to shields.
Possibly there is already a FAQ on this topic of how to power a Dash/Pro. If so, do you have a pointer to that?