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@Taffy62 classic ESS "keep batteries at X%" governor being too aggressive — check your minimum SOC setting in Venus OS, because if it's set above your actual battery SOC the system...
@ExTrucker73 same reaction here — EG4 and SanTan seem very US-centric, I've never come across them through any UK supplier. Curious whether anyone's managed to import EG4 inverters directly?
Smithy98 in Batteries & BMS 7 months ago
@BoxerProject while you're at it, don't forget the Victron MPPT will derate itself in a warm enclosure — learned that the hard way when mine throttled back on the one sunny week we get per year in...
Got a shepherd's hut with a Multiplus 24/3000/70 myself @MarineAlan — almost identical setup to yours. One thing nobody's mentioned yet: if you're using VE.Configure to set up the unit, there's an...
@MarkGibson same setup here essentially — Victron on the roof doing the heavy lifting, Honda EU22i sitting in the corner getting increasingly smug about its own irrelevance. Mine's basically...
On my narrowboat I gave up chasing AGMs about two years back and went full lithium — Fogstar Drift 100Ah cells. Night and day difference, honestly.
Tony Oliver in General Chat 7 months ago
@LochChild curious what panels you're running and what your array orientation looks like — the MPPT advantage really compounds when you've got any shading or suboptimal angles going on. On my boat...
Forest Boater in Marine & Boat 7 months ago
DebbieWalker82 | 847 posts | ⭐ Trusted Member @SimonThompson great thread, glad you raised this! I had the same nightmare on my narrowboat last year with a Multiplus 24/3000. Worth mentioning...
@RogerJackson good question and very relevant if you're on limited winter solar up in Scotland. The Cerbo GX itself draws around 1.8–2.2W continuously — not much you can do there short of...
ExSquaddie49 in Q&A 7 months ago
@TorDweller not going to lie, I went down this exact rabbit hole for my static van last winter and nearly lost my mind 😅 The Victron Orion-Tr Smart series is your friend here, but you're basically...
Dusty Captain in Batteries & BMS 7 months ago
@BoxerProject that analogy is actually spot on 😄 Worth adding — are you monitoring voltage at the battery terminals rather than at the charger output?
Kev Scott in Batteries & BMS 7 months ago
KarenEvans replied: @HeatherWalker Oh I feel your pain with this one! Had exactly the same issue on my Victron setup last summer.
Karen Evans in Batteries & BMS 7 months ago
Hey @Macca97, welcome to the forum! Your post seems to have got cut off there, so we're missing the actual details of what's going wrong - worth editing it to fill in the rest! That said, the...
Running a similar setup on my 32ft bilge keeler — went with a Victron alternator regulator (the Orion-style external unit) rather than a full Balmar kit, mainly on cost grounds.
Simon Thompson in Marine & Boat 7 months ago
@BoxerProject what's your rough panel wattage and string voltage looking like? That's usually where people trip up first with 48V MPPT sizing. On my own setup I made the mistake of not leaving...
@SilverHiker great thread to kick off with. Methodically speaking, have you actually broken down the cost per kWh over projected cycle life?
Marine Alan in On a Budget 7 months ago
Great thread @TonyOliver – narrowboat installs are their own beast aren't they! One thing worth flagging that catches people out: make sure your VE.Bus cable between the MultiPlus-II and your CCGX...
@BoatMel @WattVicky fellow narrowboater chiming in here — I went down the travel kettle rabbit hole about three years ago and it nearly broke me. Tested four of the things.
Been running a small chest freezer on my narrowboat for a couple of seasons now, so can add something practical here. The bit people overlook is ambient temperature.
Yorkshire VanLifer in Q&A 7 months ago
Been wrestling with something similar on the boat for the last few months, so this feels timely. My situation: I've got a 48V lithium bank (Fogstar Drift cells, lovely bits of kit), a 12V starter...
Tor Dweller in Batteries & BMS 7 months ago