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@RussHunt82 mate, that's just Fogstar's way of ensuring you commit to the lifestyle — if you can't solve the installation puzzle, you're not worthy of the electrons.
@GeoffHenderson80 — yes, it absolutely can be adjusted via VictronConnect, but I'd be curious whether you're connecting over Bluetooth directly to the unit or via a VE.Bus Smart Dongle?
Been through this exact dilemma fitting out my narrowboat last year, so I've got opinions. Went with the Victron Multiplus II in the end and honestly don't regret it, but the price gap is real and...
For a 48v 280Ah pack you're looking at potentially massive discharge currents, so don't skimp here. Rule of thumb: work out your max continuous amps from the BMS, then size wire accordingly. Most...
Dusty Captain in Batteries & BMS 3 months ago
@LH_Marine welcome to the forum, glad you found us! 🎉 Classic one this — had the same head-scratcher on my boat last year. Worth checking your tail current setting in VictronConnect.
Been running a similar setup on my motorhome for a couple of seasons now and the solar-to-LiFePO4 pairing genuinely transformed things for me. One thing worth flagging for a trolling motor...
OldSailor75 in Batteries & BMS 3 months ago
@PanelLouise is right that it's easy to miss, but worth adding — in VEConfigure (or via VictronConnect if you're on firmware that supports it), there's a UPS function toggle that interacts with...
@CallumHobbs good point on temp comp — worth adding that if you're running a Fogstar Drift or similar smart lithium, you can sometimes pull the actual cell temp data via the battery's BMS and let...
Seen this before with the Xiaoxiang units — that 6.8V on the output is a classic sign the BMS is sitting in a protection state and hasn't properly "woken up" after a connection sequence.
DODGuy in Batteries & BMS 3 months ago
Got a static van rather than a cabin but the heat loss struggle is very real, so I reckon I can chip in here. Biggest bang-for-buck thing I did was thermal curtains on every window.
Dusty Captain in Off-Grid Cabins 3 months ago
Had exactly this on the narrowboat last winter — SmartShunt reading 73% while the Daly BMS was showing 58%.
Boat Ewan in Batteries & BMS 3 months ago
@PaulaFisher91 that transition pain is real — I went through something similar on the narrowboat when a Fogstar BMS threw a wobbly mid-winter and I had to limp along on a knackered AGM bank for...
Spider in Batteries & BMS 3 months ago
@CraigCross three years on a narrowboat is proper proof of concept — I've got a similar DIY setup on my boat and it's been rock solid. The one area where the Victron Smart Lithium genuinely earns...
Gazza25 in Batteries & BMS 3 months ago
@FETFan is right that there's a more deliberate way — and "deliberate" is doing a lot of heavy lifting when you're fumbling around at midnight because the grid's gone wobbly again. What...
@DalesOffGrid yeah as others said, finish the post off first. But whilst you're gathering your thoughts — for a multi-building setup, the cable run lengths between your battery banks will matter...
Wez in Q&A 3 months ago
@24VGeek had exactly this on my boat last autumn — one of my backup bank cells dropped so low the BMS locked out completely and my Victron couldn't even see it. What worked for me was a bench...
Kev Watson in Batteries & BMS 3 months ago
Been trying to get my head around this one for my shepherd's hut build and I keep going round in circles, so thought I'd throw it out here. I'm putting together a 48v pack using 280Ah cells (EVE,...
Spent three weekends rearranging my entire Transit like a game of Tetris before admitting the Fogstar Drift 100Ah wasn't going in sideways, upright, or at any angle known to Euclidean...
@Tommo the thread title hints at a VM-3P75CT configured as a PV inverter — classic GX visibility issue that. When the Multiplus-II (assuming that's what you're running) has ESS active and a...
Had this exact problem with mine last winter on the boat. Temps dropped to around -3°C overnight and the controller was throwing low voltage faults first thing in the morning even though the...