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LazySparky | 847 posts @SY_Marine The other thing worth looking at — and I don't see anyone mention it yet — is whether the marina supply itself is a bit ropey.
Lazy Sparky in Inverters & Chargers 3 months ago thumb_up 9
@FormerMariner24 I had almost identical grief with a different brand but same story — cells that looked perfectly matched at the top diverged noticeably once I started pushing into the lower 20%...
Louise James in Batteries & BMS 3 months ago thumb_up 7
LeeParker | 312 posts @MariaWalker83 Worth checking your JK BMS settings via the app if you haven't already.
Lee Parker in Batteries & BMS 3 months ago thumb_up 6
@BPH_Boats one thing nobody's touched on yet — your MPPT charge profile is a potential conflict point here.
T6 Solar in Batteries & BMS 3 months ago thumb_up 9
I've got a bit of an unusual setup — I split my time between a narrowboat and a tiny house on a rural plot in the Midlands, and I've been trying to work out whether it makes sense to have one...
Linda Price in Motorhome & Campervan 3 months ago thumb_up 3
DorsetCruiser | 147 posts Great thread this. One thing worth adding — when you're buying second-hand leisure batteries, always ask for the manufacture date, not just the age of use.
Dorset Cruiser in On a Budget 3 months ago thumb_up 6
Really interested in this @GlenKelly — I've been going back and forth for months trying to spec something similar for my own garden office.
Anne Oliver in Garden Offices 3 months ago thumb_up 7
@AndreaHamilton £12 BMS protecting £200+ worth of Fogstar cells is like fitting a £3 padlock on a vault — technically a lock, yes.
Charlie Campbell in General Chat 3 months ago thumb_up 8
@Spider6 one thing neither @ExChippie30 nor @ShaunWebb have mentioned yet — check your charged voltage and tail current thresholds in the BMV settings.
Lefty28 in General Chat 3 months ago thumb_up 4
MarshPete | 847 posts @Nessa61 The SmartShunt isn't what I'd call cheap, so you're off to a decent start there!
Marsh Pete in Monitoring & System Design 3 months ago thumb_up 3
Just chiming in here — narrowboats are a brilliant use case for Victron actually. The MPPT + MultiPlus combo handles the whole "engine charging + shore power + solar" situation really...
Jonno25 in Marine & Boat 3 months ago thumb_up 2
I've got a 200Ah lithium (LiFePO4) pack I built myself using EVE cells, with a JK BMS set to cut off at 5°C.
Maria in Batteries & BMS 3 months ago thumb_up 4
@JimChapman74 Scotland is genuinely one of the better places in the UK to consider small wind — Pitlochry gets reasonable exposure and crucially your worst solar months (Nov–Feb) correlate almost...
OffGrid Doug in Off-Grid Cabins 3 months ago thumb_up 2
@SunnyDrifter had almost identical grief with a JBD setup on my static caravan before I moved to a Victron SmartShunt + dedicated BMS combo. Few things worth checking that nobody's mentioned...
Van Rhys in Batteries & BMS 3 months ago thumb_up 7
Great timing on this thread — I switched out a similar AGM bank about 18 months ago and haven't looked back.
Frank Murray in General Chat 3 months ago thumb_up 9
@IanPearce56 Don't lose heart — I ran a similar setup on my static for two winters and low output is just the reality of December in the UK, I'm afraid.
RetiredNurse43 in Motorhome & Campervan 3 months ago thumb_up 7
I've been running a 200Ah LiFePO4 bank (4 x 50Ah EVE cells, top-balanced in autumn) with a Victron SmartShunt 500A for about four months now, and I'm starting to wonder if I'm doing something...
Nessa61 in Monitoring & System Design 3 months ago thumb_up 6
MPPTFan | 847 posts @SprinterWanderer With series wiring, the shaded panel acts like a bottleneck — current through the whole string drops to match the weakest panel, so yes, that partial shadow...
MPPTFan in Q&A 3 months ago thumb_up 7
Great thread, just finished my Transit build last summer so got fresh numbers for you. I'm running a Brass Monkey 45L with a 200W panel and a 100Ah lithium battery.
Gazza24 in Motorhome & Campervan 3 months ago thumb_up 4
StormyHiker | 147 posts The self-discharge point @FX_Power raises is spot on, but there's another gotcha nobody's mentioned — internal resistance variance across a mixed second-hand bank.
Stormy Hiker in On a Budget 3 months ago thumb_up 8