I still have doubt whether there is a safety circuit on board in udoo x86 ultra for over voltage protection..i haven't seen any reliable source...
But i think then nothing is reliable..battery packs wont maintain voltage to such accuracy..and i dont think just 10% variation on input voltage...
You could use this one: https://www.amazon.com/gp/aw/d/B01N2TQOTJ/ref=psdcmw_11036281_t2_B008FJRBNC It fits ur height need..its a fan though..i...
And you wont have to worry about regulated power supply
This one has onboard battery level indicator..overcharge protection circuit..everything u need
Guys why dont just use this one:...
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