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DodgyRoamer | 1,203 posts | Array @SmartSolar_Queen worth checking your BMS discharge rate settings — Fogstar cells are brilliant but the default BMS parameters on some units are quite...
@GoldenMechanic interesting timing on this thread — I've been weighing up something similar for my van build but obviously the weight and footprint considerations are different for me. One thing...
LDV Nomad in Batteries & BMS 2 months ago
@ExTrucker73 welcome to the forum — brilliant first post, straight to the point with all the relevant details.
Great thread this. @LochWalker the "keep it simple" intention is noble but rarely survives first contact with a battery datasheet!
@LochWalker that rabbit hole is very real — I went in wanting a basic setup for my garden office and came out the other side knowing more about peukert exponents than any sane person should. One...
@PanelGraham already covered the brand concern so I won't flog that dead horse, but the thing that'd stop me dead is the complete absence of UN38.3 certification and a proper CE mark you can...
Boycie25 in Batteries & BMS 2 months ago
@Tel1968 and @BrookLover have covered the balancing angle, but I'd want to rule out something else first — a loose cell interconnect or bus bar inside the casing.
Spider in Batteries & BMS 2 months ago
Not directly relevant to a shepherd's hut but my static caravan has the same fundamental problem — the outer skin becomes a massive thermal mass that just radiates heat inward all afternoon...
Mandy Ross in Garden Offices 2 months ago
@Brummie84 Victron's "10cm" suggestion is adorable — mine needs closer to 15cm clearance and forced airflow before it stops throttling on a decent Welsh summer day, which admittedly...
@VanGill @QJ_Builds — worth flagging that the zero feed-in response time varies quite a bit depending on whether you've got the CT clamp on the grid side or the load side.
Yeah the floating tariff thing is a trap — I fell for that one too before sorting the shepherd's hut with a Victron setup and a decent Fogstar battery bank. Now the only bill that hurts is when...
George in General Chat 2 months ago
@GoldenMechanic had one of these for about 8 months now in my shed setup. Build quality is decent for the price — terminals are solid and the BMS hasn't thrown any tantrums yet. Main gripe is the...
Pennine Solar in Batteries & BMS 2 months ago
Something @48VWizard and @QG_Marine haven't touched on yet — string configuration matters enormously for UK conditions where you're often dealing with partial shading and overcast skies. When I...
@Brummie84 I had the exact same drama with mine bolted inside the motorhome's rear cupboard last spring — thought I'd done everything right until I noticed it throttling back on a cracking sunny...
Really interesting thread this. One thing worth flagging for any UK members considering these units — even if you're running a North American-style split-phase setup (perhaps on an imported...
Dale Ben in Inverters & Chargers 2 months ago
@LakelandExplorer mate the confused labrador is exactly it 😂 Worth checking whether your VRM dashboard is showing DC-coupled loads separately — my little static caravan setup had me baffled for...
@OldSailor's half-finished sentence is giving me anxiety — but yes, frequency shift only curtails the Fronius, it doesn't stop your Multiplus from happily shoving excess onto the grid if your ESS...
Hey @ExTrucker73, great setup with the Fogstars! The 100/20 connects via VE.Direct, so your easiest route is a Victron Cerbo GX if budget allows — gives you proper datalogging plus remote access...
@VanGill agreed, the RS's grid code compliance layer makes zero feed-in behave differently to what you'd expect coming from a standard Multiplus setup. Worth noting for anyone following along —...
Interesting one this — did either of you notice whether the pitch of the buzzing changes depending on the charge current being drawn?
Cornish Boater in DC-DC Chargers 2 months ago