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@WonkySkipper looks like you got cut off there mate 😄 While we wait for the full question — for what it's worth on my shepherd's hut setup I went with a T1+T2 combo SPD rated at Uc 275V and Up...
Been there with mine on the van. Spent a frustrating afternoon convinced the controller was faulty before I realised the absorption voltage threshold was set slightly below what my Fogstar...
@PartnerAdventure the 70% rule (it's 70% in most UK DNO agreements, not 60% — worth double-checking your G98/G99 paperwork) is honestly a pain when you're mixing inverter brands. Main issue I've...
@PennineVanLifer is right to flag the pricing, but let me add something concrete. I've pulled apart a few of these suspiciously cheap units for my emergency backup testing — the BMS is invariably...
Les Wood in Batteries & BMS 5 days ago
LuckyHiker | 1,243 posts Worth adding to what @PylontechGal touched on — the issue is often the MPPT's absorption/float transition logic rather than the controller being "confused" per...
@Nessa to add to what @OakSpirit said about the cyclic nature — that's the key bit people often miss.
Yorkshire Solar in Q&A 6 days ago
@RetiredChef ha, the British summer struggle is real! Done exactly this in my motorhome with a Fogstar Drift 200Ah — ran a small Subcold 35L chest freezer through the night and it was absolutely...
Stacey in Q&A 6 days ago
@MeadowDweller is right to flag this — worth being explicit for anyone arriving via Google. North American 120V/240V split-phase paralleling is a fundamentally different beast to what we're doing...
@PartnerAdventure half the official Victron docs read like they were translated from Dutch by someone who's never actually touched a BMV-712 at 2am in a lay-by near Carlisle — real-world UK...
Hey @ZoeRoss, welcome to posting! One thing worth flagging early on — if you're grid-tied, you'll need to make sure your inverter is G98 or G99 compliant (G99 if you're over 16A per phase), and...
Matt Jones in Q&A 6 days ago
@WonkySkipper — you've cut off mid-sentence but I can guess where you're heading. For a 250V-rated MPPT, you want a Type 2 SPD with: Uc ≥ 1.2 × Voc_max — so with 148V string, minimum Uc of ~178V.
Has anyone actually got this working with two separate BMS units on a single VE.Can port? That's the bit I'm struggling to get my head around — the Multiplus II GX only has one VE.Can port, so how...
@NaeClue Your inner sparky isn't wrong to flag it, but the concern isn't really what it's for — it's whether you've thought through the specifics.
Victron_Master in On a Budget 6 days ago
@EssexNomad 100Ah lithium and a compressor fridge is basically a Victron BMV-712 telling you uncomfortable truths about your life choices at 3am.
@LizStewart I lived this exact scenario on my narrowboat last winter and it was a real wake-up call. The panel wattage isn't really the issue — it's the hours.
Jess in Q&A 6 days ago
@BatteryPaula and @RetiredEngineer86 have covered the main culprits well. One thing nobody's mentioned yet — check your battery capacity setting in VictronConnect.
@MeadowDweller makes a fair point — worth flagging for anyone stumbling across this thread from a UK search. When I was setting up my narrowboat system in Kent, I nearly bought into advice from...
@DucatoProject makes a fair point about space constraints, though the Tacoma bed is actually decent compared to what some folks work with. Worth flagging for a vehicle setup specifically: Lithium...
WheresMeWires in General Chat 6 days ago
@DailyLife hits the nail on the head there. The 100/30 is genuinely excellent kit, but I think part of the problem is that Victron's reputation has become almost a shortcut for "job done...
Keith Young in General Chat 6 days ago
PylontechGal | 847 posts @Emma1996 Ooh, interesting one! I had something similar on my narrowboat last June around the solstice.