110v / 48v to 12v and 48v inverter
Posted: Mon Dec 02, 2019 10:54 pm
Well when I got this trailer my intent was to make something I could boondock with and enjoy Arizona's out of the way places. That is once we finish our house. After a bit of research I stumbled onto Nissan Leaf batteries. You can do 24v 48v or 72v. I decided on 48v to reduce wire size and improve inverter efficiency and as well as more choices of inverter options as 72v is rare. Tesla batteries would be my first choice but too much money and you can't repair or replace cells like you can with Leaf batteries.
I have the 110v and charging inverter 110v output done. I need to finish the 48v solar and 30 amp 48v dc to 12v dc converter. I have a switch to turn on / off the DC to DC converter at 12v @30 amps. The solid state relay trigger is limited to 3 - 32v so I have a resister to drop the voltage to a little under 24v. The relay is rated for 40 amps at 60v so I should be good as my max is 58.3.
I had to run flex conduit from the fuse box and ran 110v out to the inverter and back to the fuses box using the inverter 40 amp rated pass through. It took 36' to run down the drivers side cabinets under the dinette and to the passenger side bench seat. Seems to work well as my batteries are charging and the AC and the vacuum works fine on shore power at the same time.
I literally had to drill and route the flex conduit through all the cabinets. I had to take out the entire dinette and benches to route things.
I have the 110v and charging inverter 110v output done. I need to finish the 48v solar and 30 amp 48v dc to 12v dc converter. I have a switch to turn on / off the DC to DC converter at 12v @30 amps. The solid state relay trigger is limited to 3 - 32v so I have a resister to drop the voltage to a little under 24v. The relay is rated for 40 amps at 60v so I should be good as my max is 58.3.
I had to run flex conduit from the fuse box and ran 110v out to the inverter and back to the fuses box using the inverter 40 amp rated pass through. It took 36' to run down the drivers side cabinets under the dinette and to the passenger side bench seat. Seems to work well as my batteries are charging and the AC and the vacuum works fine on shore power at the same time.
I literally had to drill and route the flex conduit through all the cabinets. I had to take out the entire dinette and benches to route things.