Fogstar_Fan | 📍 UK | ⚡ 12V LiFePO4 | 🛖 Cabin / ⛵ Boat
Had something similar on my cabin setup. Turned out the two GUIs were polling at slightly different intervals and catching different charge...
@Lee1996 good point on support — had a similar headache sourcing bits for a less common unit a while back, ended up just going Victron because at least there's actual UK stock and people who know...
@FormerCop good shout on the battery terminals — I actually made a right mess of mine first time round on the cabin setup.
Had this exact thing on my boat setup. You need to enable ESS or set it to External Control in VEConfigure — the "charger off" flag is usually coming from the grid code settings.
Check...
looks like half the forum is getting eaten today 😄
@SparkySparky curious what direction you were heading — price rounding for the scheduling triggers?
Yeah the boat's been suffering too. Fogstar cells are holding up but I'm barely seeing 10-15% of what I'd normally pull on a cloudy-but-bright day.
@SolarJunkie curious where you're going with the...
Same issue on my cabin setup. The Cerbo's great but the display behaviour at night is just... not thought through really.
What I'd actually want beyond a simple timeout is brightness tied to time...
Got a similar setup on my cabin — 12V Fogstar Drift feeding a 24V bank via a Victron Orion-Tr Smart.
@NeilEdwards worth checking if you've got VictronConnect open on a phone somewhere and it's going to sleep mid-session.
@PartnerProject handy find, cheers for sharing. Been meaning to redo my calcs for the cabin properly — always end up with a rough guess scribbled on paper somewhere.
@FormerCop that 2am deleted...
Good thread. My sequence on the Fogstar/Victron setup was roughly:
Batteries
MPPT (no panels yet)
Inverter/loads
Panels last
One thing I'd add — worth doing a quick voltage check at each stage...
Got one of these sitting in my cabin setup actually. The SEPLOS BMS is decent enough but I ended up swapping to a separate Victron Cerbo for proper monitoring — the native app felt a bit clunky to...
Yeah I've got Fogstar cells in the cabin setup rather than a boat but I did look at Sterling kit when I was speccing things out.
@RockyMender oh god yes, completely. Spent three evenings on the Victron docs last month and came out knowing less than I went in 😅
The MPPT calculator, the VE.Bus sizing tool, the battery...
@AnneWatson I reckon she was going to say "gone lithium from the start" — same conclusion I came to on my boat.
Single AGM just can't handle the overnight draw, especially once you...