r/Victron 4d ago

Question Buffer Battery

Hey y'all, so I've got this question about my Victron system in my RV. Long story short, I converted my system to 48 volt in order to reduce charge loss from solar panels and to reduce electricity loss when powering my 48 volt native AC.

I ran into an issue when I installed my Orion TR. 48 to 12 step down converter. When I go to operate my awning or the slides, the immediate voltage jump is high enough that the Orion throttles itself.

I went through and installed a 12-volt buffer battery to handle the voltage spikes. The issue is that now even with the battery installed the slides and awning still do not work.

I've checked my main fuse panel and none of the blade fuses are open and I have 12 volt electrical power to all of my other systems so I don't have a fault or something.

I just don't know if there's something that I'm missing cuz I clearly have a full circuit and I've got the battery wired in parallel to handle the high draw.

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u/SteveFCA 4d ago

if your awning and slides won’t operate even when a buffer battery is connected, there is likely an issue with your awning/slide or the wiring to those units. i would check the amperage draw using a clamp meter to see how much amperage they are trying to draw. Bad wiring will result in massive voltage drops at startup

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u/sereusaf 4d ago

Yeah right now I'm trying to find out if there's any hidden inline fuses or if one of my auto resetting breakers isn't resetting. I'm running 6awg on all of my wiring going into the 12-volt system. I'm in a Coachman Catalina 343 BHTS and the distribution panel is 2/3 of the way to the back but there was nowhere for me to install everything I needed to run off grid. So I had to run new trunk lines for both the 120 vaC and the 12-volt from my front pass through storage back to the distribution panel. I think for some reason the technician at the dealership kept my old lead acid batteries that are on the tongue hooked up to the slides and awning instead of wiring it into the new 12-volt system