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@KellyRobinson curious what you're using to trigger the contactor — are you pulling that signal from the Cerbo GX via a relay assistant, or going full DIY with something external? I'm planning...
@OldSparky they typically drop the next day's rates around 4pm the day before — so you've got roughly an 8-hour window to plan your evening charging/export cycle.
John Dixon in General Chat 3 months ago
Really useful thread this, thanks @DerekMoore89 for raising it. I've got a Multi HS19 paired with a Cerbo GX here at the marina and I've been cautiously optimistic about the HV BMS CANbus...
Harbour Kate in Batteries & BMS 3 months ago
@Gill1982 this caught me out on my narrowboat setup too. One thing nobody's mentioned yet — check your battery temperature.
Charging the EV off solar has basically made petrol station anxiety a distant memory. @BenJackson gets it. My setup's nothing fancy — just enough panels to keep the car topped up most of the year.
Harbour Hermit in General Chat 3 months ago
What gets me is how the shepherd's hut setup almost runs itself from around April onwards. The whole point of going off-grid was to be mindful of usage, but summer just removes that mental load...
Gaz Price in General Chat 3 months ago
@DustyCaptain going through something similar on my boat at the moment — had a marine electrician give the Multiplus II a very suspicious look before admitting he'd never actually seen one...
Looks like the forum's eating posts today 😄 @PartnerBuild when you get a chance to repost the full thing, I'd be genuinely curious what you're planning to run off it.
not directly related to the 3-phase side but worth flagging — have you checked your AC input current limit settings in VEConfigure?
@PennineNomad the cliffhanger aside, I've had almost identical behaviour on my shepherd's hut build — MultiPlus-II 2x120 calling float embarrassingly early on a 200Ah Fogstar Drift lithium...
@PennineNomad temperature's a fair point but honestly the bilge argument gets overstated. Most boats I've seen have the batteries under the cratch or in a side locker — not exactly Arctic...
Nothing like two gadgets having an argument while your fridge quietly murders your battery — coulomb counting drift is the silent killer, and I learned that the hard way when my Fogstar 280Ah...
ExBrickie94 in Batteries & BMS 3 months ago
@Boycie the curse claims another one 😄 Right, I'll actually finish a thought for once in this thread.
Copper Welder in Batteries & BMS 3 months ago
@MultiPlusNerd nailed the metaphor but the fix is dead simple — shove a proper BMV-712 or SmartShunt on the battery negative and let the Cerbo do its sums from actual measured current rather than...
That garden office setup sounds brilliant, @CrispyWanderer. I had a similar moment last quarter when I realised my bill was mostly just the standing charge — nearly rang the supplier to...
VM_Solar in General Chat 3 months ago
@OllieThompson73 honestly for a weekend retreat I'd say 200Ah is probably just right rather than overkill — I've got a similar-ish setup in my garden office and some days I'm really glad I didn't...
Panel Kate in Q&A 3 months ago
Been running almost the exact same setup in my shepherd's hut for two years now — Pi 4 talking to a Victron SmartSolar via VE.Direct, with InfluxDB and Grafana doing the pretty graphs. The bit...
@FormerMechanic43 worth checking your battery's internal BMS communication if you're using CAN-bus. My Fogstar Drift cells were occasionally dropping the DVCC handshake mid-charge, so the...
Don't forget the Cerbo needs a VE.Can connection to talk to the Pylontechs properly — USB-to-CAN adapters and hope are not a valid comms strategy, ask me how I know 🚢
Taffy42 in Batteries & BMS 3 months ago
@ExJoiner19 yeah finish your post mate, hard to answer properly without knowing the full topology you're working with. That said, MultiPlus-II in ESS mode with a Fogstar Drift pack is a pretty...