Battery (DC) to Shore Power Wiring
Hi. First time post. Nice to meet you all. My wife and I just bought a 1965 Shasta Compact travel trailer. The trailer is already wired for shore power (AC) and that system is working fine. When we...
Forum Discussion
I have a '71 trailer so not that much newer but in that era , there was the beginnings of onboard 12V converters. My '71 Progressive Industries converter has an optional circuit board to enable the 12V power supply to become a battery charger, for example. In any instance, you should check over your trailer to see if it has a 12V power supply or converter. You will want to disable that when operating on battery -> inverter supplied 120V power.
Also, if you wish to have a more elegant solution than plugging the shore cord into the inverter, there are available, inverters with a built-in transfer switch or stand-alone transfer switches, both of which can be hardwired into the trailer's load center and offer automatic switching between inverter and shore power.
Your '65 probably doesn't have many electrical devices to power, if stock. Multiple 120V lights operated together may present a significant load, though. Be sure to read and understand the relationship of inverter draw and battery capacity. Here's one example: Estimating power requirements
Also, if you wish to have a more elegant solution than plugging the shore cord into the inverter, there are available, inverters with a built-in transfer switch or stand-alone transfer switches, both of which can be hardwired into the trailer's load center and offer automatic switching between inverter and shore power.
Your '65 probably doesn't have many electrical devices to power, if stock. Multiple 120V lights operated together may present a significant load, though. Be sure to read and understand the relationship of inverter draw and battery capacity. Here's one example: Estimating power requirements
