RV 48v to 12v converter for Jacks and Slides without 12v Battery

[DOINSND]

Hello new to forum.

Ive seen its been talked about 48v to 12v converter to power 12v Hydraulic Jacks or electric Slides.
Has anyone found the best way. Besides running a 12v battery.
Victron has a 24v 70amp. Ive seen people running two in parallel to power the 12v high amp rv systems.

 

[sunshine_eggo]

You just need to size its continuous output to meet any surge current you might experience.

This is one reason why I like to treat 24V/48V vehicle system as "on board shore power" where you leave the 12V system intact... the biggest reason? You basically have a 12V backup system built in, and that 12V battery can handle any surge you throw at it... like RV genny starting...

Yeah, yeah... DC-AC-DC conversion is only about 75% efficient, but I use way less 12V than AC power.

 

[HRTKD]

Leaving a small 12 volt lead acid battery in place is, to me, the easiest solution. I did that on my prior toy hauler and I'm doing it again with my new toy hauler. I don't have slides but I do have a generator, so I need something that can handle the surge current to start the generator.

I'm using the Victron Orion Tr 48-12/30 to get 12 volt power to the RV's DC system. An Orion XS 12-12/50 is downstream from that to keep the battery on the tongue charged. I'll throttle down the Orion XS to 10 amps or less.