Prepared Society Forum banner

power supply

  1. Energy & Electricity
    Just wanted to share my upgrade of a UPS (uninterruptible power supply) I will give credit where its due, this project was inspired by this UPS I liked this guys idea, however he was using the wrong batteries that will kill you if they are charged indoors (car batteries) not to mention they...
  2. Energy & Electricity
    Hi All!! ....Newbie alert.......:eek: Been prepping for a number of years now and posting for as long...Anyway ,, I found this site a while back that showed a circuit / or buy the plans etc etc that you could use the 50 volt line on your phone lines as alternate power........:D Unfortunately...
Top