From: nospam.Richard.Falken@f1.n770.z14837.fidonet.org   
      
     Re: Backup power supply   
     By: Andriy D to All on Wed Mar 13 2024 01:18 pm   
      
    > Hi,   
    >   
    > I'm considering adding some backup power supply for my RPi2 mainly   
    > to avoid filesystem issues which may be caused by a  short power outage.   
    > There are some interesting schematics online as well as some quite   
    > cheap 'manufactured' options. But I'm wondering, maybe someone has   
    > some experience / feedback to share?   
    >   
    > Cheers,   
    >   
    > \aID   
    >   
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   Any inexpensive backup power unit from a recognized brand will do. There is no   
   need to overthinkig it if you don't want to. The cool thing of an Uninterrupted   
   Power Supply from a recognized manufacturer is you can get one the RPi can talk   
   to over USB (or whatever), so the RPi will be aware of the stat of the battery   
   and shutdown if it gets dangerously low.   
      
   Production servers hooked to complex power systems are able to send you an   
   email to your smartphone if power goes out, or if battery gets dangerously low   
   etc. because of this reason.   
      
   Building one yourself? I have never done it but it looks quite doable. Keep in   
   mind that starting an electrical fire or spilling the contents of your homemade   
   battery on your carpet sucks. I'd use a self-made unit for the fun of it in a   
   safe environment but I would not leave it running 24/7 so happily.   
      
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