TwistedGray wrote:
Vehicle: (2015) 2017 Majestic 19G
Problem: The coach battery only powers the 120v outlets when the RV is connected to shore power or when/if the generator is running.
Question: Does anyone know what would have to be done to have it so that I can utilize the coach's battery without being plugged in or having the generator running? If someone has a wiring diagram for this model, that would be great.
I am looking into adding a secondary battery bank; however, based on our power requirements I think I could get away with just tapping into the coach's battery for outlet power and recharging the battery when in motion (or using the generator). I do not need constant power from the coach battery, but I would like to tap into it without having to dump $500-750 in battery gear (or running the generator).
I have connected three 12V (cigarette lighter) outlets along with USB outlets in my 28a - you can plug in any inventor into those and as long as you do not exceed the wattage (try not to run too much from it - max limit is 120W of a standard 12V lighter outlet); you will have 120V outlet. I would use it only for things like charging computer or low wattage devices.
Here is the link to 12V outlet I bought
https://www.amazon.com/gp/product/B08DTCQKDBYou can splice into any LED light cable and in fact install this right next to it. I put one each over the dinette seat and one over the back bed. Used it with 12V heater blankets (~36W) and they worked perfect (no need to heat up the entire camper all night). (For those curious - I bought these blankets -
https://www.bestbuy.com/site/stalwart-electric-car-blanket-heated-12v-polar-fleece-travel-throw-for-car-truck-rv-great-for-tailgating-emergency-kits-black-white-plaid/6425651.p?skuId=6425651)
Here is an example or inverter (no idea how good it is - I just did a search on Amazon - but there are many you can choose from on Amazon or any other store.
https://www.amazon.com/BESTEK-Inverter-Converter-Adapter-Thinner/dp/B07DVXNSDHNow if you want to run the microwave - you would need a massive battery and a direct battery connected inverter. :)
