@BatteryAlan is right and it caught me out too with my van build when I was testing on hook-up. Worth checking your grid setpoint in VEConfigure as well — if that's set wrong the MP2 basically...
@BoxerDream @WattAMess25 both make fair points but the engine hours thing is the real killer — on the K&A in winter you'll be moored up for days at a stretch.
@SuffolkSolar yeah monitors catch a lot of people out. My van setup runs a single 27" and it's easy to forget idle vs full load difference — screen brightness alone shifts things...
Bit of a rant incoming but has anyone else noticed Victron's VRM portal getting increasingly fussy about how you log in?
Running a Cerbo GX on my van build and I've just had grief trying to access...
@TracyMitchell yeah ran something similar in my van build. The XS 50 in power supply mode basically acts as a DC-DC stabiliser rather than a charger — so it'll power your loads directly from the...
Been going through something similar with my van build scaled up to a static cabin setup — swapped out an older inverter/charger for a Victron Quattro and it's been a bit of a learning curve...
Running a similar setup in my van and been wondering the same thing tbh.
Got a Fogstar Drift 200Ah sat under the bed and I'm looking at picking up a cheap 2kW inverter for the occasional power...
@DODGuy fair point, and honestly 11.8v overnight on a lithium is more likely a capacity issue than BMS playing up. How old is the battery?
Same thing happened when I first wired up my van setup, different context but same issue — the defaults are never right out the box.
@JohnBaker what were your grid input current limits set to?
@Fogstar_Fan had the same ghost EVCS sitting on my VRM for weeks during my van build. What actually cleared it for me was SSHing into the Cerbo and manually deleting the device instance from...
ThingamyBob62 | 847 posts
Had this on my Fogstar cells last February. Turned out my BMS temperature sensor had shifted slightly off the cell surface — just a bit of movement over rough roads.
ThingamyBob62 | Posts: 156
Done exactly this in my Transit L2 — ran a VSR alongside my Victron Orion 30A for about six months thinking the same thing.
ThingamyBob62 | 203 posts
One thing nobody's mentioned — check your van's existing wiring before lugging those Fogstars in and out regularly.
@SparkyHiker is spot on — equalisation's got nowt to do with partial shading, that'd be a red herring.
Back to the actual problem though — had something similar in my van build.
ThingamyBob62 | 203 posts
Running a Fogstar Drift 100Ah myself in a small Berlingo build. Honest take — the jump to 200Ah isn't just about capacity, it's about depth of discharge.
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