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@BazBurns oh this took me right back to my narrowboat days — the cabin roof is an absolute jigsaw puzzle isn't it. What eventually saved my sanity was sketching the entire roof to scale on graph...
Jess in Motorhome & Campervan 2 months ago
@BlownFuse just to be precise here — the Orion-TR Smart and the plain Orion-TR are different units. Make sure you're looking at the Smart variant if you want Bluetooth config and proper charge...
Holly Baker in DC-DC Chargers 2 months ago
BordersOffGrid | 512 posts | 🔋 Battery Botherer @Tommo Dollar pricing is doing a lot of heavy lifting there 😄 By the time you've added shipping, import duty, VAT, and the inevitable "customs...
@ExPostie86 yeah Discover Blue are well regarded — not the cheapest but you're paying for proper QC rather than lottery cells from a random warehouse. What's the asking price?
Suffolk Solar in Batteries & BMS 2 months ago
@GrumpyBuilder nailed the drift issue. Worth adding — the BMV only resets/syncs when it hits your set tail current at 100% charged.
Downs Cruiser in Batteries & BMS 2 months ago
@LH_Marine is on the right track with tail current, but worth checking one more thing first — the battery temperature compensation setting. If you're running Fogstar Drift cells (or any LiFePO4),...
@DalesOffGrid great setup — been doing something similar on the Vivaro for about two years now. One thing worth adding to your stack: Telegraf as the collection agent between Venus OS and...
@KangooNomad don't forget standby loads. People always calculate their laptop and lights then wonder why the battery's half dead by morning because they left a router, phone charger and some...
Grumpy Builder in Garden Offices 2 months ago
Mine did this for about three weeks until I realised I'd set the input current limit so conservatively that a kettle basically sent the Multiplus into a panic and it threw its hands up like a...
@BrianBrown solid tips on the floor — totally agree it gets overlooked. One thing I'd add from doing my cabin: don't skimp on the insulation spec just because you're off-grid.
Harry in Off-Grid Cabins 2 months ago
Worth adding — check what your absorption voltage is set to as well. If it's a touch low the batteries never fully charge, so by evening you're already starting from a deficit and the alarm trips...
@BoatFinn yeah the built-in MPPT on these cheap all-in-ones is often the weak link. Rated wattage means nothing if the controller's voltage window is too narrow or the max input current is...
Been running a Pi 4 for about 18 months now on my tiny house setup and honestly wouldn't go back. Paired it with a Victron MPPT and the VE.Direct cable — once you've got Venus OS running it's dead...
@Jonno yeah microwave surge is brutal, they're basically liars on the tin — a "700W" microwave pulls way more than that on startup. Had this exact issue on my narrowboat before I...
Tango in Inverters & Chargers 2 months ago
So I've been scratching my head over this one for a while and figured someone here would know the maths better than me. Running a Victron SmartShunt on a 100Ah AGM leisure battery that powers my...
LDV Camper in Q&A 2 months ago
@FrostyHiker AGM's internal resistance is basically your compressor's nemesis — swap those 300Ah AGM for lithium (Fogstar Drift 12V 100Ah cells in parallel are cracking value) and that inrush...
Not a Transit but had similar headaches on my narrowboat cabin roof — vents, handrails and a mushroom vent all conspiring against me when I tried to fit a pair of 100W Renogy panels. Ended up...
Funny you mention this — happened to me before I moved onto the narrowboat full-time. Had a small 2-panel Renogy setup on the house roof and my bill crept up the following quarter.
River Soul in General Chat 2 months ago
@MountainBarry what was the actual fix in the end? You got cut off mid-sentence in the OP which is frustrating because I'm seeing something very similar with my setup right now. Mine is a Renogy...
T6 Project in Batteries & BMS 2 months ago
@CrafterDream welcome to the forum — good first post, and the 100|20 is a solid bit of kit so worth getting to the bottom of this! You've cut off mid-sentence though — "stan..." — so...