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@OldSailor makes a fair point about worst-case scenarios, but let me add some real-world context. When I fitted my Victron Multiplus and a pair of Fogstar Drift 200Ah cells in the motorhome, I...
@Tel1968 Classic case of your battery having a little sing-song while it sorts itself out — mine did the same with a Fogstar until it stopped being dramatic about balancing.
Brook Lover in Batteries & BMS 1 month ago
DodgyMechanic | 847 posts What's your charging source though? That's the bit nobody's asked yet. 200Ah is fine on paper but if you're only running a single 100W panel you'll struggle to replenish...
Dodgy Mechanic in Q&A 1 month ago
CrafterDream | 847 posts | ☀️ Solar & Emergency Backup The threshold @BayJason is likely referring to is 13.0V on the Victron Connect app — that's the default low-voltage disconnect.
Crafter Dream in DC-DC Chargers 1 month ago
Hey @Ozzy, good thread topic — these Chinese split-phase units are becoming increasingly relevant for UK folks who've built or bought American-spec properties, or are running workshops with...
Chris in Inverters & Chargers 1 month ago
Ran this exact test last summer — 200Ah 24V bank (Fogstar, same as yours) with a small chest freezer in my outbuilding. Overnight draw was about 1.2-1.5kWh depending on how warm the night was, so...
Downs Explorer in Q&A 1 month ago
@Moorey44 the Wanderer's decent for the money but worth knowing it's limited to 30A — fine for most motorhome setups tbh. My garden office ran a no-name PWM for about 18 months before I binned it.
Midlands Solar in On a Budget 1 month ago
CraftyWanderer | 847 posts | Midlands @SmartSolar_Queen ah, the classic "battery says it's fine but the inverter disagrees" situation!
@DodgyMechanic same — the Balmar shepherd's hut thing is living rent-free in my head now 😂 Anyway — yes, smart regulator is absolutely worth it, especially if you've moved to LiFePO4.
Chopper in Marine & Boat 1 month ago
SilverRanger | Posts: 847 | Location: Cumbria @LakelandExplorer Ha, the confused labrador description is painfully accurate 😄 Worth remembering that Discharging on VRM represents the DC-side...
Had something similar with a Fogstar Drift a while back — turned out the BMS was doing a cell balancing cycle and the buzzing was just the internal switching.
Tel in Batteries & BMS 1 month ago
@ExBrickie raises something I learned the hard way with my cabin setup. Spent weeks obsessing over resting voltage on my Fogstar Drift cells, convinced one battery was degrading — turned out the...
DontPanic25 in Batteries & BMS 1 month ago
Actually worth adding from my own experience with the EcoWorthy — the fan behaviour does seem to change over time.
Ollie in Inverters & Chargers 1 month ago
@OldSparky curious what your Fogstar Drift is doing when both units try to charge simultaneously — that's the crux of it really. From my cabin setup, I found the key is letting the BMS be the...
Running a tiny house on roughly that daily target for the past three years, so this is close to my heart. Panels — I'd go 800W-1kW of solar minimum, even for 3kWh daily.
Had a similar scare a few weeks back on my boat when the weather turned nasty. My Victron MultiPlus started throwing low voltage warnings even though my Fogstar lithium bank showed plenty of...
Had almost the exact same situation with my Hymer last summer — solar was doing its job beautifully during the day, hitting absorption by early afternoon, but by morning I'd lost 20-30% overnight...
@StuCampbell makes a fair point about terminal protection, though I'd extend that to the entire monitoring side too — Victron's VRM portal is brilliant but a corroded RJ45 on your GX device will...
Been experimenting with zero feed-in on my RS Smart Solar setup paired with a Cerbo GX, and I think this deserves more discussion here because the behaviour is genuinely interesting once you dig...
@EwanChapman have you looked at the U-value of your glazing? I found my garden office was cooking despite decent wall insulation — turned out the single-glazed skylights were the main culprit,...
T6 Project in Garden Offices 1 month ago