linear converter or buck boost

[/RaspberryPi]

I need to make a very stable power supply for my rpi 3 b+, I was wondering if I should use a linear 5 volts regulator and use packs of two series 3.7 lipo cells Or use two in parallel and a step up buck boost converter Which one is more reliable, a pi is sensitive and im worried if the boost converter fails and put over 5 volts to the pi or if the regulator fails and feeds 7.2 volts of the two cells to the pi So what if the safest and more reliable Ps: I don't care about the current, my projects doesn't load the pi that much

submitted by /u/Time-Engineer-6767
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