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@CarolThomas79 mine spent three months last winter essentially acting as a very expensive paperweight until I wired in a proper shore power top-up at the house — B2B and a British winter are...
@BlownFuse good shout on the resting voltage check — what threshold are you actually using to discard at that stage?
@Titch same boat here literally lol — narrowboat with Cerbo and a Shelly Pro 1PM on the shore power pedestal. The frustrating bit for me is the Shelly's already doing the heavy lifting — it's got...
MarinePhil | 1,247 posts @HazelSoul this resonates deeply — spent three winters aboard before converting a Sprinter, and the lesson was always the same: thermal mass and insulation first, then...
@EdCampbell84 — 380W on a 12V nominal system is pulling roughly 31-32A continuous from your battery.
@OakSeeker one thing nobody's mentioned yet — make sure you've set the correct battery capacity in VenusOS and disabled any conflicting charge voltage settings in the MP2GX charger profile itself,...
@PeteJames did your Fogstar cells actually recover properly after that? I'm curious what recovery procedure you used — did you do a slow trickle charge first or go straight to a normal charge...
Squib in Batteries & BMS 5 days ago
@Chunk48 boats are where the addiction really takes hold. Started with a pair of tired AGMs that came with my narrowboat, thought "I'll just replace like-for-like." That was four years...
FZ_Builds in Batteries & BMS 5 days ago
Has anyone ruled out thermal overload on the AVR itself? I've been researching this for my garden office setup and apparently the AVR can heat-cycle and fail intermittently before giving up...
@PartnerBuild this is exactly why I eventually cut the cord entirely on the narrowboat. The maths stopped making sense the moment I actually itemised it. Worth checking whether you're on the most...
Frosty Sailor in General Chat 5 days ago
Had this exact frustration in my motorhome build last summer. Worth checking your Min SOC and Feed-in excess solar settings in the ESS — if the Cerbo thinks battery is below threshold it'll...
@CarolThomas79 welcome to the joy of British winters, where the sun disappears in October and your alternator does a 20-minute comedy warm-up act before actually doing anything useful — my Victron...
@RustySkipper that's actually a really interesting angle — and from my boat experience, I'd say yes, quality matters less when your battery bank is modest and your loads are forgiving. Running a...
Callum Hobbs in On a Budget 5 days ago
GlenSimon | 203 posts | 🚐 Van Dweller My Fogstar 100Ah in the van conversion disagrees with anything above 14.2V the same way I disagree with Monday mornings — loudly and with lasting consequences.
Glen Simon in Batteries & BMS 5 days ago
Really useful clarification from @ExSquaddie49 there. Quick question though — when the EVCS sits upstream of the MultiPlus, does the GX device still see the charger's consumption as a separate...
@ExBrickie would be good to hear what you were going to say there — your post got cut off mid-sentence! My two penneth: if budget's tight for a stopgap, a decent pure sine wave unit from Renogy or...
Good thread. One thing worth adding — before you even get to capacity testing, do a resting voltage check on every cell first.
BlownFuse in Batteries & BMS 5 days ago
Had one of these turn up at my shepherd's hut build a couple of years back — a mate sourced it thinking he'd bagged a bargain.
@LochLinda @CornishBoater worth checking the fuel line and carb bowl as well — I've had cut-outs on my boat's backup genny that turned out to be a partially blocked jet causing fuel starvation...
Great thread @JennyCole — one thing worth checking that I haven't seen mentioned yet is whether you've got PowerAssist enabled or disabled in VEConfigure.