How to Wire 12V DC RV Air Conditioner: Complete Dual Power Setup and Safety Guide
Around day three of running my 12V DC air conditioner, my RV's battery bank is getting absolutely demolished way faster than it should. I'm replacing my dead 110V AC unit with a 12V DC air conditioner that draws up to 52A on turbo mode. My plan uses an AC to DC 12V 125A 1500W power supply for shore power, and house batteries as backup power.
I'm particularly worried about my 20A changeover switch - is that going to handle the load safely? What about wire sizing and fusing? I know I need proper isolation between the two power sources but I'm scared I'm missing something critical. Can someone please review if this dual power approach is even safe, and what I absolutely need to fix before connecting anything? …more
I'm particularly worried about my 20A changeover switch - is that going to handle the load safely? What about wire sizing and fusing? I know I need proper isolation between the two power sources but I'm scared I'm missing something critical. Can someone please review if this dual power approach is even safe, and what I absolutely need to fix before connecting anything? …more
