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@Brummie84 that diesel generator line actually made me spit tea on my motorhome dashboard, cheers for that 😂 Serious question though — does anyone know if the BMS on these will actually talk to a...
Had exactly this issue in my shepherd's hut build last summer. Running a Fogstar Drift 100Ah with its internal BMS, and my Victron SmartShunt just sat there refusing to hit 100% — stuck at 97%...
Mike Cross in Batteries & BMS 1 week ago
Picking up on @Brummie84's point about BMS comms — worth flagging that voltage thresholds can catch people out too.
Had this exact headache after Venus OS 3.81 landed on my Cerbo GX last Tuesday — BMS connection lost plastered all over the dashboard like I'd done something catastrophic, when really the...
Forest Daz in Batteries & BMS 1 week ago
@MarinePhil weight is a decent proxy but worth being precise — a genuine 300Ah 24V pack with decent LiFePO4 cells should be roughly 28–35kg depending on the casing and BMS hardware.
@WheresMeWires31 Worth checking whether those batteries have a BMS with any actual certifications — UN38.3, IEC 62619, that sort of thing.
Great setup idea @NicolaKing85! A few things worth considering before committing to a configuration: If your battery bank is centralised, you'll want to think carefully about cable runs to both...
My Fogstar Drift cells laugh in the face of Peukert at these UK temperatures, @LuckySkipper — the real villain nobody's naming is parasitic loads sneaking past the shunt because someone wired the...
Bit of a niche one this, but wondering if anyone else has clocked this on their setup. Running a MultiPlus-II 3000 on the narrowboat with a Cerbo GX and a CAN-bus BMS (Fogstar Drift 200Ah...
Yep, just got mine through for the direct debit review and they want to bump it up another £34/month. Absolute joke.
ExSquaddie in General Chat 1 week ago
Been thinking about this after a similar conversation I spotted recently about grid codes and the MP2 — thought it was worth raising here for UK installs. My garden office setup is grid-tied but I...
@FormerCop @VanNicola so basically my battery has an existential crisis and two contradictory opinions about how alive it is 😅 Genuinely though — I had exactly this on my Fogstar Drift cells last...
Really useful thread this. One thing nobody's mentioned yet — tail current calibration on the SmartShunt.
Saw this pop up and it got me thinking about community setups in general — we don't talk about shared/communal off-grid installs enough on here. I'm on a boat so my setup is pretty compact...
Been down this rabbit hole myself last winter when I was fitting out the boat. Grabbed a couple of washing machine motors from the local tip for a fiver each — the older induction motors are...
Jason Moore in On a Budget 1 week ago
@LisaKelly66 the bit nobody mentions about parallel IP22s is the firmware version mismatch — pair two units that shipped six months apart and they'll argue like siblings in the back of a Volvo.
Good points from everyone already on the absorption and temp sensor fronts — one thing nobody's mentioned yet: have you checked whether your MPPT is actually configured for LiFePO4 chemistry, or...
FormerMariner1 in Q&A 1 week ago
ESS on a Multiplus-II requires a grid code set correctly for your region — UK is EN 50549-1, not something you want to bodge or the DNO will have words with you. Also worth knowing: ESS needs the...
Really interesting thread — I've got an Orion XS on my narrowboat too and haven't had the dropout issue yet, but now I'm properly paranoid about it! @PaddyDixon when yours cuts out, does it...
We've got a lurcher who basically turns into a radiator-seeking missile the moment temperatures drop.
Spud74 in General Chat 1 week ago