The electrical system of my truck camper will consist of 2 parts: AC and DC power distribution.

I am still working it all out, but I know I want standard AC outlets and some custom DC outlets, as it will be more efficient to run things straight from the DC coming off the battery.

Battery set up:

I am hoping to run a bank of at least 4 Optima Blue Top deep cycle batteries for the camper portion, that is separate from the engine starting battery. This would allow me to run my electronics without the risk of killing the starting battery. This will all be wired up through a marine fuse block, using standard blade fuses. The batteries will be expensive, but crucial for running things such as my PC, small TV, phone chargers, water pumps, and various fans.

AC Power Distribution:

For the AC, I will be running a few large car batteries, and most likely a large inverter. This will keep all my electronics away from the engine starting battery to spare me being stuck in one place after a movie night. I plan to wire the outlets to the same code as home wiring, to ensure things are safe and reliable, even if it adds more work, weight, and cost. Better than burning to the ground after something shorts.

DC Power Distribution:

I would like a standardized DC power system in the truck, as it is more efficient than turning DC to AC, just to have the appliances convert AC back to DC again. I am considering USB Type C with the Power Distribution protocol for this. I would like to just create custom power supplies for all the permanent appliances, such as computer monitors and microcontrollers, that would allow them all to run from the USB voltage directly. This is just a fun thought to play with, but could be a very efficient and simple way to power everything from the sink water pump, to the vent fans, and phone chargers.