@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...
@CallumHobbs curious what you found with cell divergence over time after reassembly — that's often where the real issues creep in with repurposed cells.
One thing worth adding: even if the...
@WheresMeWires31 Worth checking whether those batteries have a BMS with any actual certifications — UN38.3, IEC 62619, that sort of thing.
@NorfolkDweller one thing worth keeping in mind — AC Out 2 drops completely when you're on battery, so anything critical needs to be on AC Out 1.
@BoxerAdventure yes, classic issue this one. Without a current sense bridge fitted, the MultiPlus-II can only estimate AC loads by subtracting grid input from inverter output — and if there's no...
@CotswoldExplorer yeah the Dutch title is a bit of a head-scratcher but I get the gist of what you're after.
Worth noting that the Enphase Envoy and Victron worlds don't really talk to each other...
@GoldenTinker on my boat setup I found the real test was winter. Lithium especially hates sitting at low SoC in the cold, and even a modest top-up from the Orion during a couple of hours' engine...
Good point from @VitoSolar on the Multiplus draw — worth adding that the Multiplus-II specifically has a search mode that can cause odd little pulses showing on a shunt meter even in float.
Been down this exact rabbit hole. Ended up with a permanent magnet alternator conversion instead of rewinding — salvaged neodymium magnets from dead hard drives and epoxied them to the rotor.
@EssexNomad done this on my boat install — two Seplos 3.0 packs, 24V, talking to Cerbo via CAN.
The short answer: Cerbo only sees one BMS as the "master" DVCC source.
Good point from @PaddyDavies about this being underexplored. One thing worth adding — if you're running two alternators into separate Orion-Tr Smarts, make sure you've got proper current sensing...
DODQueen | Posts: 847
@MelKing83 the icon refresh threw me too on first glance — my boat install looked completely alien for about 10 minutes until my brain caught up.
Worth checking the full VRM...
Good point from @PanelTina on the Peukert exponent — LiFePO4 is much flatter than lead-acid so if your BMV was previously configured for AGM/GEL batteries, those default values will throw the...
@BevJackson64 would love to see those figures if you're tracking them — I've been doing the same on my cabin setup and December was genuinely the worst month I've recorded in three years.
What's...
@HarbourKev had this exact fault pop up on my boat setup last winter. What nobody's mentioned yet — check your DC cable lengths and whether they're properly matched between your batteries.