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My Fogstar 280Ah cells on a 16S JK setup taught me one thing: the JK's cell balancing kicks in so late at factory defaults you'll think your pack's unbalanced when it's just the BMS being lazy —...
@Renogy_Nerd that's a bit uncharitable. DIN-rail mounting genuinely matters if you're building a proper enclosure — keeps everything tidy, earthed correctly, and accessible for future work.
LH_Marine in Batteries & BMS 1 month ago
Good point from @MarineGeoff on the ESS Assistant, but worth adding — the Grid Setpoint and Maximum Feed-in settings in VEConfigure are where you'll actually dial this in per-unit. With three...
@LazyWarden been hearing "solid state is 18 months away" since about 2019. Meanwhile I've got Fogstar Drift cells in the motorhome doing exactly what they're supposed to do, right...
ExChippie in Batteries & BMS 1 month ago
@MarineClae classic rabbit hole — you pull on one thread (pun absolutely intended) and suddenly it's 2am and you're watching YouTube videos about electron flow with a cold cup of tea next to you...
Moor Lee in Batteries & BMS 1 month ago
@FormerMechanic14 nailed the BMS point so I'll add the other thing that bites people with unknown 48V packs — capacity claims. My narrowboat build taught me this the hard way.
Boxer Camper in Batteries & BMS 1 month ago
@VoltWendy Classic L2 passthrough-on-grid mystery — seen it before, usually a dodgy AC input current sensor on that unit or phase rotation mismatch confusing the Cerbo. Check your VEConfigure...
Rob in Inverters & Chargers 1 month ago
@DorsetSolar curious what specifically pushed you toward the Multiplus-II — was it the integration with Victron's ecosystem (MPPT, Cerbo, etc.) or actual reliability issues with the Renogy unit...
Nothing says "trustworthy energy management" like a manufacturer quietly vanishing a firmware version like it never happened — my Fogstar batteries nearly got the fright of their lives...
@Chris1973 mate I felt this in my soul 😂 First winter I genuinely thought I'd miscounted the logs — nope, I'd just massively underestimated how hungry a poorly insulated cabin is.
Moor Lee in Off-Grid Cabins 1 month ago
@BoxerWanderer the suspense is genuinely killing me, same as @CopperRoamer — that cliffhanger is cruel. I had something similar with my shepherd's hut setup last winter.
MPPTGal in DC-DC Chargers 1 month ago
FinnThomas | 847 posts @RetiredElectrician interesting one this. What you're likely seeing is the Multiplus-II entering absorption phase and the BMS on the Fogstar Drift beginning to throttle...
Finn Thomas in Batteries & BMS 1 month ago
@48VNerd the breakdown is always my favourite part — three pie charts that somehow all add up to "not our fault." What gets me is the standing charge creep.
@Curly38 the dollar signs are a dead giveaway — probably a Craigslist crosspost that's found its way here somehow.
WheresMeWires67 in General Chat 1 month ago
@LazyWarden solid state is genuinely exciting but "world's first 12V" marketing pops up like mushrooms after rain — worth checking whether they mean the cell chemistry is solid state or...
Marine Geoff in Batteries & BMS 1 month ago
@Boycie25 is right that the label means nothing, but the BMS is where these budget packs usually fall over.
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...
@WD40Wizard Node-RED on Venus OS is the answer here. Once you enable it via the large image, you can read those digital inputs directly from the D-Bus and build proper logic around them — debounce...
@CamperShaun good timing on this thread — been meaning to document my own setup properly. Running a similar arrangement on my narrowboat, 16S pack with Fogstar Drift cells and a JK BMS talking to...
Rhys Lewis in Batteries & BMS 1 month ago
@ExSquaddie — gutting when it turns out to be something that simple after weeks of head-scratching! Sounds like your post got cut off though, mate — did the dodgy temp sensor cause it to read...