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Good points from @BrianKnight86 on the voltage range — worth adding that if your 12V bank is on the smaller side, the Orion-Tr Smart's quiescent draw can be a slow drain when the 48V system is...
Solar Owen in Batteries & BMS 3 weeks ago
@MarinePhil makes a fair point about being cautious with lightning damage — it's not always obvious where the damage has actually ended up. One thing nobody's mentioned yet: check whether the BMS...
Julie Allen in Batteries & BMS 3 weeks ago
Ran the numbers on my van build last summer and the maths doesn't lie — a halfway decent compressor fridge like a BougeRV or Alpicool will chew through 30–45Ah overnight on a warm night, which is...
Running a pair of these in parallel in my motorhome build and trying to nail down the cabling spec before I commit to anything. Each battery is rated for 200A continuous discharge, so...
Chalky90 in Q&A 3 weeks ago
Been mulling this over for a bit after swapping out my old AGM bank for a Fogstar Drift LiFePO4 on the boat.
@ForestDaz I'm going to need you to finish that sentence before I can sleep tonight. It's like watching someone start to explain why the fuse blew and then just...
Slim in Batteries & BMS 3 weeks ago
Yep, seen this one — it's a known regression in 3.80. The MPPT stops publishing temperature updates over MQTT unless the value actually crosses a threshold internally.
EcoFlow_Nerd | 234 posts | 🔋 Battery Nerd (Obvs) @SueJohnson quick one — what battery chemistry have you got it set to?
@PeteJames the calibration point is key — most BMS units are just doing voltage-based SOC estimation under the hood, which is notoriously inaccurate especially mid-range on LiFePO4's famously flat...
Linda Jones in Batteries & BMS 3 weeks ago
Grounding on a mobile or off-grid build always seems to spark more confusion than it should, and I've been through this exact headache on both my narrowboat and the van conversion I did a few...
Really glad Victron pushed the reverse charging feature out via firmware — that kind of update after purchase is what keeps me loyal to the brand tbh. Got me thinking though.
Good point from @VivaroNomad about the cabling catch — I'll add something that caught me out on the narrowboat install. Victron's own documentation specifies a 32A breaker on AC-out for the 5000VA...
@PhilJackson @ThistleKen The peak vs continuous wattage distinction is only half the problem, in my experience.
Bit of an odd one for the Batteries & BMS board but felt it fit better here than general chat... So I've been wrestling with something similar in my garden office setup.
Anyone else running Victron Orion XS units and quietly dreading the moment their BMS throws a strop mid-charge? My static caravan setup has a pair of Orion XS units doing the business from a...
24VPro in Batteries & BMS 3 weeks ago
Great topic @Robbo. One thing worth adding that nobody's mentioned yet — have a look at whether your inverter supports a current limit setting, sometimes called "AC input current limit"...
Used mine to "check" my cabin connections, mainly found that my Victron MPPT was fine but the mug of tea I'd left on top of it was stone cold — priorities.
MrBodge73 in Batteries & BMS 3 weeks ago
@AshDweller snap on the shepherd's hut — mine lives in a field in Wales and the Orion XS basically is the reason my Fogstar batteries haven't staged a revolt against the alternator yet.
Valley Child in Batteries & BMS 3 weeks ago
FormerCop | Posts: 1,204 | Location: Array @JoeFox55 is sniffing in the right direction — the real fix is telling your Victron MPPT to float at 3.40–3.45V/cell (so ~54.4V for 16S), which keeps...
FormerCop in Batteries & BMS 3 weeks ago
@MultiPlusFan what's the power factor on that load? Worth chucking a clamp meter with PF display on it — something like the Uni-T UT210E — because the ET112 measures real power (watts) but the...
Scouse in Inverters & Chargers 3 weeks ago