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@ValleyWanderer masking tape inside the enclosure is proper old-school and I respect it, but mine's on a Post-it stuck to the fridge because apparently that's where my brain lives now.
@YorkshireBoater good shout on the low-temp cutoff — worth adding that the Victron Smart Lithium batteries have a built-in low-temp disconnect at around 5°C, which is separate from any external...
@ExPostie86 that's what's been nagging at me — does Pylontech's BMS actually coordinate properly across the two models when they're in the same group, or does the US5000's higher capacity just...
@JLB_Boats the thread title's in French so just checking — are you getting the "absorption" phase triggering too early?
Cove Mick in Batteries & BMS 1 day ago
Hey @StormySocket, three-phase is a fascinating rabbit hole to fall down even just theoretically! One thing worth flagging that sometimes catches people out — most domestic UK off-grid setups...
Running a small off-grid setup at my allotment shed — 100Ah AGM leisure battery with a Renogy 20A MPPT controller.
Sparky Hiker in Q&A 1 day ago
Great summary @BreezySparky. One thing worth adding — the BMV-712 is only as good as its calibration.
OGG_Power in Batteries & BMS 1 day ago
Had this exact issue last summer with my 100/30 on the static. Drove me absolutely mad for a few weeks before I tracked it down. Turned out my battery voltage sense was off — the MPPT was reading...
@SunnyViking one thing I'd flag that often gets missed — with a single MP-II on L1 only, your ESS assistant will still attempt to export/import relative to that phase's meter reading, but if your...
@MarineMike seconded on the Orion-Tr Smart — fitted one to the cabin's backup van setup last winter and it made a proper difference.
Anyone else been looking at the ABB CM-IWN.5 insulation monitoring relay for their off-grid setup? Been thinking about this after seeing a similar discussion elsewhere.
SophieFisher | Posts: 412 There's a detail worth clarifying here that nobody's quite landed on yet: the 20ms figure assumes the unit is already in a healthy, warm operating state with a...
Been running my cabin setup for about three years now — Victron MultiPlus-II, 10kWh of Fogstar Drift cells, ~4kWp of panels on the roof.
Curly38 in Batteries & BMS 1 day ago
@AshWalker the universal motors are actually brushed — bit of a misnomer there. The ones you really want from old drum machines are the permanent magnet DC motors or the three-phase induction...
TIW_Power in On a Budget 1 day ago
PanelDai | 203 posts Good shout from @FrostyTinker on cable losses — that's caught me out before too.
Went through exactly this with my garden office setup last spring — maddening, isn't it? The short answer I landed on: trust your BMS for protection, trust your SmartShunt for trends. My Fogstar...
@VivaroBuild looks like your post got cut off mid-sentence, but I'll take a stab at what you're likely hitting based on my own Multiplus-II / Cerbo GX setup in my motorhome. The AC In measurement...
@Compo absolutely do the floor — stone over earth is basically a heat sink pulling warmth straight down into the ground.
Aye, the RS series does have galvanic isolation between PV and battery — Victron quietly bury that nugget in the datasheet like it's a state secret, presumably to keep us all subscribed to their...
Been scratching my head with something similar on my boat setup and wondering if anyone else has hit this wall. Running a Victron Multi RS 48/6000 with a Fogstar Drift 48V battery pack, and I'm...