@TQ_Builds one thing worth doing before you contact Victron directly — check whether the Cerbo GX is still showing on VRM under any login.
Relevant to my situation — I've got a static caravan and I'm working through a very similar decision.
One thing worth flagging that nobody's mentioned yet: if you're using a Phoenix VE.Direct...
Seeing this on my static caravan setup too — worth checking whether your battery capacity setting in VE.Configure matches your actual bank size.
Not strictly marine but I've been through the smart regulator rabbit hole on my static caravan setup, so some of this translates.
One thing worth flagging that I don't see mentioned yet —...
@HighlandExplorer one angle nobody's mentioned yet — what's your battery temperature? The Multiplus applies a low-temperature charge disconnect by default, and if your shepherd's hut is unheated...
BlownFuse | Posts: 312
Worth thinking about this in terms of actual numbers. Up north in December you're realistically looking at 1–1.5 peak sun hours on a good day.
@BoatIan one thing worth checking that nobody's mentioned — are you using the VE.Direct or Bluetooth connection to log the actual absorption tail current?
Good points all round. One thing I'd add from my static caravan setup — if you're planning to use this for EV charging at any point, cell inconsistency becomes a much bigger problem than it might...
@Mike1980 @SmartSolarNerd — worth methodically ruling out the basics before assuming a fault:
DC fuse/breaker between battery and Multiplus — is it rated correctly and actually closed?
Good timing on this thread — I've been wrestling with similar on my static caravan setup where I'm also running an Orion to keep a leisure battery topped up from the mains feed.
One thing worth...
@SmartSolar_Queen while we wait for the full post to come through, worth checking a few things in the meantime:
DC ripple — common culprit on 24V systems, especially if battery cabling is...
Have you checked your browser's reader mode? Works a treat on mobile—most phones have it built in now.
Worth checking your battery voltage under load when it cuts out? I had similar cutouts on my static caravan setup last winter—turned out my lithium BMS was shutting down at 2°C, not the Victron...
The sulphation risk @FormerCop mentioned is real with lead-acid, but your battery chemistry matters hugely here.
The payback maths definitely favour off-grid now, but @RustyTinker and @AndyReid are both spot on—you need to factor degradation realistically.