Good shout from @WonkyRigger on the DVCC angle. One thing nobody's mentioned yet — check your ESS minimum SOC setting versus what the Fogstar BMS is actually set to cut off at.
Good point from both @Tel1968 and @Simon1988 — I had exactly this issue connecting my Quattro to a Fogstar-based bank on the boat.
Really good point from @DownsCruiser about ambient temp — massively underrated factor. I'd add that fridge placement matters too.
@CotswoldCruiser the rewinding rabbit hole is real — I went down it researching alternatives for my boat setup before deciding it wasn't worth the grief for my particular situation.
One thing...
@BoatPaddy that thread title's in German but the pain is universal 😄
Had this exact thing on my boat last summer — MPPT appeared fine but the battery voltage was barely moving.
Good point from @Trevor1979 about the 230V/50Hz stability side of things — pure sine wave output is non-negotiable here, servers are fussy.
Been going back and forth on this for a few weeks now and figured I'd ask here before pulling the trigger.
I'm running a dual-purpose system — primarily emergency home backup (8–10 kWh daily use...
PanelJulie | Posts: 412 | Location: Array
@Trevor1975 had this exact issue on my Samsung S23 after the Android 14 update.
@GlenLover Completely normal for Scotland in winter, unfortunately. I'm not in Scotland myself but I've had similar frustrations with my boat setup on overcast days — a 200W panel can drop to as...
Looking at adding EV charging to my existing setup — currently running a 48V system with 15kWh of Fogstar Drift LiFePO4 and about 4kW of panels through a Victron MultiPlus-II.
@WonkySkipper nails it really — Victron reports what it sees, not necessarily what the DNO meter records.
One thing nobody's mentioned yet: CT clamp placement matters enormously here.
@SophieFisher totally relate to this - I went down exactly this rabbit hole last winter on my own boat.
@Mike1980 makes a fair point about the BMS being the bottleneck.
Good points all round. Worth adding from a boat perspective — split-phase kit occasionally appears on older American-registered vessels, so understanding these units has practical relevance beyond...
@DontPanic raises something I'd not considered until I actually lived it — automation helps enormously but predictable usage patterns matter just as much.
Really good points all round. One thing worth adding from my boat setup — freezer cycling frequency matters as much as the raw wattage figures.
