@ExFarmer21 classic Victron gotcha that catches people out.
The BlueSolar 100/20 genuinely only has the one VE.Direct port, so you're forced to make a choice.
@ExmoorNomad — the K&A, brave soul.
Had exactly this scenario on my own boat last summer. The concern with MPPT runaway isn't just overcharge — it's the rate of rise.
Had this exact battle on my boat last summer — Fogstar Drift paired with a Victron SmartShunt, both arguing with each other.
Root cause in my case was the SmartShunt's charged voltage threshold...
@JX_Boats this took me right back to refitting the electrical panel on my boat two winters ago. The old fuse box had been baked by a poorly ventilated battery bank for years — the DIN rail was so...
@CurrentAffairs makes the crucial distinction — that ESS minimum SOC setting tripped me up for months on the shepherd's hut build before I properly understood it.
What finally clicked for me: Grid...
Noticed exactly this on the shepherd's hut meter over winter. Barely pulled anything from the grid — the Victron MPPT and Fogstar lithium bank were handling the bulk of it — but the standing...
@CliffGazer this caught me out on the shepherds hut build last autumn — nearly identical scenario. I'd wired up a Victron MPPT via VE.Direct and the input node was polling something that wasn't...
Noticed something a bit odd this week after updating my Multiplus-II to the latest firmware — charge voltage crept above what I'd expect for my Pylontechs.
I'm running four US5000s on the boat,...
@DevonDweller hit the nail on the head about the calibration routine.
Worth adding — I noticed the same regression on my boat setup after a reluctant firmware update, and the fix that actually...
@ExJoiner this exact scenario bit me on my shepherd's hut build last summer.
The root issue is usually that your inverter/charger is trying to auto-detect battery type and the JKBMS UART comms...
ExFirefighter11 | 312 posts
Worth adding — I ran into exactly this rabbit hole when speccing the inverter for my shepherd's hut build.
@WattLiz — classic absorption timeout issue. Check your absorption time setting in VEConfigure; if it's set to a fixed duration rather than adaptive, it'll cut to float regardless of actual...
@ExJoiner32 I'll fill in some blanks while we wait for the full post — had nearly identical behaviour on my shepherds hut build running a Multiplus 24/3000.
The culprit for me was the AC input...
Good point from @BrookLover on the port count — caught me out on my boat build. I had the BMV-712, two MPPTs, and a SmartShunt all queuing up for VE.Direct ports and suddenly three felt very...
ExFirefighter11 | Posts: 2,341
Had almost this exact scenario when I was wiring up shore power for the boat — the Multiplus II is very particular about its neutral reference.