@Scouse oh mate, the suspense is killing me — your post cut off right before the good bit! 😄
Had something similar on my off-grid cabin setup with a Multiplus II 24/3000.
Really useful points from @LDVCamper and @Tommo10 there.
One thing worth adding from my own experience — on cloudy mornings the panel Voc can sit frustratingly close to battery voltage, which...
@BenJackson haha exactly that — it's just sat there completely lost 😄
Worth adding for anyone who finds this thread via search: the correct wiring order is always battery first, then panels.
Just done the same swap on my setup last spring — moved from a knackered old PWM controller to a Victron SmartSolar 100/30 and honestly the difference was night and day.
Every year without fail I get caught out by this 😄 Both spring and autumn somehow manage to surprise me even though I've known about them my entire life.
My Victron MPPT and the Cerbo GX both need...
Really useful thread this. I've got the same unit in my off-grid camper build and spent ages dialling in the settings last winter.
One thing I'd add — the input current limit is your friend here.
ExpertCamper | 1,203 posts
@ShaunDixon I'm actually running something similar in my off-grid cabin setup — 48V bank for the heavy lifting (inverter, induction hob) and a Victron Orion-Tr 48/12-30...
Finally pulling the trigger on a proper off-grid setup for my little timber cabin in the Peak District.
ExpertCamper | 2,156 posts | 🏕️ Off-Grid Living Enthusiast
@BlownFuse whilst you finish your post — the EV charging bit is the real curveball here and worth thinking about separately from your...
ExpertCamper | 1,203 posts
@GillWard The thing that sold me on the Orion-Tr Smart was the isolated version — completely separates your leisure and starter batteries which is brilliant if you've...
@EwanCole58 and @MoorCamper have basically nailed it — the BMV-712 is the answer here. One thing worth adding though: make sure you calibrate the shunt correctly and set your battery capacity,...
Good shout from @ShedGenius on the wattage caveat. Worth adding — a cheap pure sine wave inverter from Amazon (or even Argos in a pinch) can absolutely bridge the gap for basics.
Good shout from @GlenDoug and @DailySolar on pinning down which side the alarm is on — that's step one for sure.
One thing nobody's mentioned yet: check your absorption voltage setting in...
Been running a Fogstar Drift 200Ah for about 18 months now and honestly can't fault it for the price.
@CE_Builds yes, 24V from the 2S2P — @LisaStewart71 has the right idea there.
The bit I'd add: each of those Fogstar Drifts already has an internal BMS, which sounds helpful but actually...
