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   REPLYADDR bp@www.zefox.net   
   REPLYTO 3:770/3.0 UUCP   
   MSGID:  8735bad2   
   REPLY:  9594023e   
   PID: SoupGate-Win32 v1.05   
   Mike Scott  wrote:   
   > On 14/03/2024 15:51, Joe wrote:   
   >> I'm using a cheap APC, I believe 650 or 750, with USB monitoring hookup.    
   Also have my router connected (with VOIP) to keep   
   >> communication possible for a little while (runtime abt 30 minutes).    
   Battery replaced once, I believe it was some 7 years old.   
   >   
   > Somehow that makes no sense to me..... current 650 is 227 pounds (maybe plus   
   > VAT) on the APC website. 5 times the cost of the Pi. I'm sure it's a   
   > very nice UPS, but.... ???   
   >   
      
   Sense or not, it seems to be a fact of life. The inverter/charger/transfer   
   units   
   I used have vanished from Amazon, replace by units with four times the power   
   and   
   double the price. Battery prices seem to have dropped very slightly, but are   
   still a whisker over $200/kWH.   
      
   A 12 volt to 5 volt stepdown converter appears to be less than $10, small 12   
   volt   
   batteries range from $20-100 in the few AH range, a 12 volt 5 amp charger   
   ranges   
   from $11 to $50. The charger would be the iffy part, since a smart charger on a   
   loaded battery is apt to get confused by what looks like high self-discharge..   
      
   Something reliable for less than $100 will take both luck and ingenuity. One   
   possibility is finding a used UPS unit in e-waste and replacing the battery.   
      
   bob prohaska   
      
      
   >   
   >   
   >>   
   >>   
   >> On Wed, 13 Mar 2024 13:18:45 -0000 (UTC), usenet@dolik.dev (Andriy D) wrote:   
   >>   
   >>> 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   
   >   
      
   --- SoupGate-Win32 v1.05   
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