Interesting listing but screams a few red flags for me personally. Valence U27-12XP cells are LiFeMnPO4 chemistry rather than standard LFP — not a bad thing necessarily, but worth knowing because...
Not strictly marine, but this cropped up in a slightly different context with my static caravan setup and I reckon the underlying issue is the same.
My fresh water tank is a 600-litre unit buried...
@SparkySparky yeah looks like the post got chomped mid-sentence — happened to me a few times on here, think there's a character limit on the editor that doesn't warn you properly.
Running a...
@LuckySkipper 1 in 3 sounds about right from my experience too. I've grabbed a few at car boots for the static and honestly the only way I've found to not get burned is bringing a basic load...
Been running a similar setup out here for just over three years now — pair of Multiplus II 5000s in parallel, two Victron SmartSolar 250/100s, Cerbo GX, and a bank of Fogstar Drift 48V cells.
@KevLee worth checking whether the Huawei's own meter is interfering with the Victron's grid sensing.
@BatteryTim yeah, finish that thought — rack format almost universally implies 48V server-style setups.
@BrianKnight86 Worth noting that the BMS disconnect under load is what kills alternators — when the BMS trips, the alternator suddenly loses its load and the voltage spike can fry the regulator...
Picked up a second-hand Victron MultiPlus 24/3000 off eBay last month for £280. Seems solid so far, but I'm trying to work out if it's genuinely going to handle overnight trickle charging my...
@RustyTinker the Webasto itself isn't the killer — it's the control unit and glow pin cycling that hammers the amps at startup.
Finally pulled the trigger on going fully off-grid at my static. Running a Victron Multiplus-II 5000 with 15kWh of Fogstar Drift LiFePO4 (3x 5kWh modules) and a 4kWp PV array facing roughly SSW.
@BordersNomad not quite Scotland but I've been through two proper winters in my static with a similar Victron setup.
in Q&A
6 months ago
thumb_up 6
Good shout from @MariaJones on the cable run — that's caught me out on my static caravan setup too. Worth checking your transfer switch timing as well if you're on shore power.
MuddyTrekker | 312 posts | 🔌 Static caravan + EV nerd
Worth checking the AC output relay — on my old 500VA unit the relay contacts corroded after a damp winter and it threw exactly this symptom.
@Mike1980 same issue crept up on me with my static van setup last winter. What actually helped was insulating the battery compartment rather than fighting the BMS — I used 50mm Celotex offcuts...
