I'm trying to design a standalone Arduino Mega + Lipo device, but I'm finding this difficult as nearly all Lipo batteries (and Lipo riders) only handle 3.7V input and provide 5V regulated output, while the Arduino's onboard regulator requires 7V input to give the AVR it's regulated 5V.
If I wanted to use a Lipo rider that provided a 5V regulated ouput (e.g. this
), how difficult would it be to bypass the 5V regulator on the Arduino Mega?
I'd like to simply wire two lipo riders in series for an ideal 7V supply, but all the advice I've heard recommends against that due to concerns with charging difficulty.