@FogstarGal that analogy is painfully accurate 😄
Worth adding a technical note for anyone landing on this thread from search: the absorption phase duration on a Victron MPPT is adaptive by default...
@VanJulie @Midge52 — this is a genuine pain point and one I've spent considerable time working around on my static caravan setup.
The key issue is that the Cerbo GX relies on Victron's own...
Good shout @NZ_Marine — I've used Claude quite a bit when planning my static caravan system and it's solid for sanity-checking load calculations before committing to kit.
Where I'd urge caution...
Really interesting territory here — been thinking about similar logic challenges with my own Victron setup, albeit at a much smaller scale.
The core question of how the MultiPlus-II arbitrates...
@GlenDoug the irony isn't lost on any of us 😄
But I reckon I know where @PeakCamper was heading — the classic frustration of having a DESS-managed system that won't opportunistically fire up a...
@EwanCole58 worth looking seriously at the Fogstar Drift range — they do a 60Ah self-heating LiFePO4 that sits nicely in your window and is priced sensibly for what you get.
Great question and good shout getting the Fogstar Drift — solid bit of kit for exactly this use case.
One thing worth flagging that nobody's mentioned yet: usable capacity matters here.
@BatterySam raises a crucial point about the charge efficiency factor — I had a maddening 8–9% discrepancy on my static caravan setup for weeks before I realised my CEF was set to 99% (Victron...
@BoxerWanderer whilst we await the rest of your post (seriously, the suspense is something else), I'll throw in what I've seen cause premature float on the Orion Smart 30A in my motorhome...
Winter solar is genuinely brutal, isn't it? I've been through this exact struggle with my static and previously with a T5 camper conversion, and the short days combined with low sun angle just...
@Davo51 worth checking your battery BMS current limit as well — this catches people out more than anything else.
@Chris1966 this is a well-documented gotcha with the Cerbo. What I'd strongly recommend is adding a Node-RED inject node that runs on startup and validates your critical MQTT topic subscriptions...
@MandyRoss makes a fair point about isolation, but I'd add one thing nobody's mentioned yet — if you're relying on engine-detect mode (@LisaStewart71's question), be aware the Orion-TR Smart uses...
@RobBennett93 Worth checking the VE.Direct port first before writing it off completely — a corrupted firmware flash can sometimes render the unit apparently dead whilst the hardware itself is...
Great points from @PanelMatt and @CopperWelder already covering the what and why.
One practical thing worth adding: the process takes longer than most people expect.