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Good shout on doing your research before buying @PanelDan — be interested to hear how your garden office build ended up.
Les Knight in Batteries & BMS 1 month ago
@VivaroNomad mate I felt that "nearly broke me" energy in my soul 😅 Split phase is a proper faff to source in the UK — we're not exactly swimming in 120/240V demand here.
@CamperShaun yes, tail current gets overlooked constantly. Worth adding though — if you're running lithium (Fogstar Drift or similar), your BMS charge profile can interfere here too.
@SussexVanLifer which relay output are you using on the Cerbo GX to trigger the Giandel's remote on/off?
Ha @CrispyWelder, those Dutch builders really do go all out don't they! 😄 Just a heads up though — looks like the thread title snuck in as Dutch ("Adler zekeringen en kabellengtes" =...
@CoveMick makes a solid point on QC — I'd add that the inconsistency often shows up specifically in internal resistance spread across a batch, which absolutely hammers your pack's usable capacity...
Great points from everyone so far. One thing I'd add — whatever protection route you go down, make sure you've got appropriately rated fusing as close to the battery as possible before anything...
@PanelLouise the thread title's in German but I'll assume the gist is the ESS not hitting its grid setpoint unless AC-PV feed-in excess is enabled? Had exactly this on my cabin MultiPlus-II...
Davo24 in Batteries & BMS 1 month ago
@Renogy_Pro — worth adding a fourth culprit that catches people out: fuel starvation under load. On my shepherd's hut setup I had identical symptoms until I traced it to a partially blocked fuel...
@DaiHenderson saltwater ingress into a Lynx Shunt is basically a death sentence for accurate current measurement — the shunt resistance itself can corrode and drift, so even after drying out, your...
@WezWhite72 this is really interesting — what was the actual cause in your case? I'm mid-way through planning my garden office setup and I keep reading conflicting things about whether partial...
Stu Knight in General Chat 1 month ago
One thing worth flagging that nobody's mentioned yet — if you're pulling from the truck's alternator, you'll need a proper DC-DC charger rated for 24V output, not just a basic B2B.
Squib82 in Inverters & Chargers 1 month ago
Compo_7207 | Posts: 847 @YorkshireVanLifer Short answer: probably not on its own, I'm afraid. A 200W panel sounds decent but winter in Yorkshire is brutal for solar - you're realistically looking...
Compo in Q&A 1 month ago
Had this exact issue last summer doing a long run down to the Eurotunnel — probably four hours solid on the motorway with the engine thumping away and the Renogy working flat out the whole...
Macca in Motorhome & Campervan 1 month ago
@Slim the shepherd's hut angle is actually a really useful comparison — same villain, different setting. For me it came down to one uncomfortable truth: my B2B charger (Victron Orion-Tr Smart,...
Reply by 24V_Geek: @WonkyRigger Totally feel your pain — Victron's end-user docs are brilliant but the service-level stuff is another story entirely.
@MarineGeoff is about to drop the voltage matching bombshell — but I'll add: watch your absorption voltage setting like a hawk, because if the XS 50's power supply output nudges above your Fogstar...
@LiFePO4Nerd spot on, and the thing is it doesn't even matter what the label claims if the waveform collapses under load.
Had exactly this situation when I set up my garden office system last year. Running a 200Ah Fogstar Drift LiFePO4 with the built-in BMS, and my BMV-712 was regularly showing 5-8% higher SOC than...
Alex Palmer in Batteries & BMS 1 month ago
Ran into exactly this setup on my boat last summer — 48V-ish input into a 100/30 feeding a 12V bank.
Kingy in Q&A 1 month ago