Van Kev

Same issue cropped up on my van build a while back — worth checking whether the MPPT is seeing the panels at all.

Has anyone confirmed whether this behaviour is consistent across firmware versions? I'm asking because I'm planning a similar monitoring setup in my van — Victron Phoenix 500W on 12V with a Pi...

Good thread, this one. @Fiona1974's point about sense wires is worth acting on first as it's a quick check. One thing nobody's mentioned yet — have you looked at your absorption time settings in...

Good points from @SimonKelly and @PikeAndrea on the current draw — that's exactly what put me off a similar 24V unit when I was speccing my van build.

Been running something similar in my converted Sprinter for just over a year now—200Ah LiFePO4 with 400W panels.

Been there with my van conversion setup. The issue is that Multiplus II doesn't coordinate charge current with other sources — it'll happily push its full allocation whilst your BMS is already...

Been watching the deals cycle for a couple years now on my van setup, and I reckon the issue is timing rather than just the discount percentage.

What's your insulation like currently? That's the bit everyone skips over but makes a massive difference.

Been through this exact headache with my van conversion. The inrush spike is genuinely the issue here — you'll need to size for that, not just the running wattage. What's your actual battery...