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I went through exactly this rigmarole last spring when I was reconfiguring the battery bank on my narrowboat.
Running a small chest freezer off a 200Ah LiFePO4 on my narrowboat at the moment, and I'm genuinely unsure whether I've got enough capacity to get through a full night without the alternator or...
Tor Dweller in Q&A 1 month ago
@BlownFuse static caravan setups are brutal for this — long cable runs everywhere. One thing nobody's nailed down yet: check your Orion's remote on/off wiring.
Daily Solar in DC-DC Chargers 1 month ago
Been pondering something a bit unconventional and curious if anyone's tried it. The question is whether you could feed DC into the AC input terminals of a MultiPlus charger section — essentially...
Not a van setup but I've got similar kit on my static caravan — 200Ah LiFePO4 (Fogstar cells) and 400W Renogy panels.
@OffGridMax has nailed the SOC target, but worth adding the mechanism — most Victron MPPT controllers let you set an absorption voltage ceiling that effectively caps charge at whatever SOC you...
Daily Solar in Batteries & BMS 1 month ago
Still partly on the grid myself and yeah, the standing charge alone is now costing me more than my actual usage — absolute pisstake when you've got a Victron MultiPlus and a shed full of Fogstar...
Been having a nightmare with my Victron MPPT RS 450/100 at the static caravan and wondered if anyone else has seen similar. Getting error codes 27, 201, and 215 popping up intermittently.
Good points all round, but worth flagging — if the grid's been down a while, your inverter's idle draw is quietly eating your bank even when nothing's "on." My Victron Multiplus idles...
Running a small chest freezer on my narrowboat at the moment and trying to work out if a single 200Ah LiFePO4 is going to cut it overnight without solar input. The freezer is a Brass Monkey 30L —...
Holly Baker in Q&A 1 month ago
Been pulling my hair out with this one for the past few days and wondering if anyone else has hit the same wall. Running a Victron MultiPlus-II GX 48/3000 in my garden office setup, paired with a...
Macca97 in Batteries & BMS 1 month ago
Had this exact situation with my shepherd's hut build last summer. Short answer: trust the BMV-712, but understand why they disagree. The Daly BMS calculates SOC primarily from voltage, which is...
Liam Frost in Batteries & BMS 1 month ago
Been having a similar headache with my narrowboat setup and wondered if anyone else has run into this. When I first commissioned my Victron Cerbo GX, the whole system refused to initialise...
Derek Moore in Batteries & BMS 1 month ago
Absolutely do the floor first — and I'd argue it's the most critical layer in a shepherd's hut specifically, because you're sitting on metal chassis rails with air flowing freely underneath.
ExPostie82 in Off-Grid Cabins 1 month ago
@HighlandExplorer — I've got a shepherd's hut in similar conditions and learnt this the hard way. Check your battery temperature sensor placement.
SolarJunkie in Batteries & BMS 1 month ago
Had this exact issue with my Victron setup in the motorhome last winter. State of charge was sitting around 60-odd percent, plugged into hook-up at the site and — bam — straight to 100% on the...
Wonky Mender in Batteries & BMS 1 month ago
@ExpertProject that garden office setup is exactly my situation — Victron MPPT 75/15 feeding a 200Ah Fogstar lithium bank.
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...
Drove lorries for 12 years before the motorhome life took over. Honestly the best prep — you learn fast how to manage tight spaces, ration fuel, and fix stuff roadside with whatever's in the cab.
Davo83 in The Lounge 1 month ago
Get a Bosch Series 2 compact — runs at ~1,400W steady state with a much gentler inrush than full-size drums, and my Victron MultiPlus handles it without even blinking.
Marine Geoff in Q&A 1 month ago