12v circuit for battery backup

My goal is to eventually run everything off a battery backup circuit. Most common systems run on a 12v battery. To start im start off with a few basic things and getting everything running from 12v.

Items needed:

  • 12v power supply
  • 12v to 5v dc to dc step down.

This controller came with a few negatives right off the jump. I dont want to link to a bad controller but ill still describe what I did.

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