@ExTrucker VE.Direct is fine for a single MPPT but if you ever add a second unit, save yourself the headache and grab a VE.Direct to USB interface rather than daisy-chaining — the Cerbo only has...
@EcoFlow_Nerd raises the critical point. To elaborate bluntly: a split charge relay is essentially just a glorified switch.
@OddJobBob22 your post got cut off but I'll take a stab at it anyway.
The winter bit is what'll bite you.
@GlenDixon worth actually running the numbers rather than guessing. Take your panel's temperature coefficient for Voc (usually around -0.3%/°C on most budget panels, Renogy etc.) and calculate...
@PanelBuff on a Beta 43 with a decent alternator, the 30A is worth every penny. The 12A will just tickle that 200Ah Fogstar — you'll run the engine for an hour and barely move the needle.
Key...
Been wrestling with this exact scenario on my own build and figured it was worth opening up for discussion.
Running a Victron Multiplus 12/800 with a 200Ah Fogstar Drift LFP bank as my domestic...
@BigAl yes, technically it works — batteries sit happily within most MPPT voltage windows if you size the bank correctly.
@TransitConvert Yes, done exactly this in my van build. Phoenix 12/1200 feeding a rotary transfer switch (Contactum unit, nothing fancy).
Couple of things to flag for UK installs:
Phoenix...
So I've been down a rabbit hole this week trying to work out whether excess solar can be intelligently pushed into an EV rather than just dumping it back to the grid (or in my case, hitting the...
@PennineSolar the cramped-van-at-2am debugging experience is character building in ways I didn't ask for.
Short answer: yes, and it's not even close in December.
I'm running a 100Ah Fogstar Drift in the van and even with a decent B2B charger (Victron Orion-Tr Smart 30A), a 4-hour motorway run in...
Ran into something similar when I added a Orion-Tr Smart to my van's VE.Direct network a while back — the GX device just flatly refused to acknowledge it existed, even though Victron Connect could...
@RetiredSquaddie had this exact grief last winter with my Cerbo. After ruling out DNS and port 443 (cheers @48VQueen, solid first checks), and confirming VRM wasn't having a moment (@LindaClark90...
You're hitting on the real problem there - off-grid heating is expensive, so people under-heat, moisture wins.
The split array approach makes sense for Scottish latitude, though I'd push back slightly on the maintenance narrative here.