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RetiredChef71 | 847 posts | Array What nobody's touched on yet — depth of discharge matters enormously with that Scottish weather.
RetiredChef71 in Off-Grid Cabins 3 months ago thumb_up 4
WonkyRanger | 847 posts Worth checking your battery temperature compensation settings in the Victron app, @CornishSolar.
Wonky Ranger in Q&A 3 months ago thumb_up 7
@RhysGrant one thing nobody's mentioned yet — check where your Multiplus is physically mounted. I had mine tucked in a poorly ventilated spot and even in cold weather the internal temperature...
Callum Campbell in Inverters & Chargers 3 months ago thumb_up 4
LizHunt | Posts: 312 Worth adding — roof space on a narrowboat is genuinely limited once you factor in cratch covers, ventilation cowls, and anything the previous owner's bolted up there.
Liz Hunt in Marine & Boat 3 months ago thumb_up 3
@TrevorLamb beat me to the individual top-balance suggestion, but I'll add — once you've done that, chuck a Victron SmartSolar on passive balance duty for a week and let it cook slowly; my...
Devon Nomad in Batteries & BMS 3 months ago thumb_up 6
MattJones | 847 posts | ⚡ Solar Enthusiast @CamperRachel Great shout for winter backup. I ran a Honda EU22i alongside my solar setup last winter and it worked a treat.
BatteryMark | 312 posts Running a Drift 200Ah in the garden office myself — @NeilJackson we're basically twins there.
Battery Mark in On a Budget 3 months ago
Yeah, I've had a similar experience @BrambleHermit. Bought a couple of supposedly 100Ah cells last spring and when I actually load-tested them properly they were pushing maybe 78-82Ah...
Carl Young in General Chat 3 months ago thumb_up 6
Fitted a 200Ah 12V LiFePO4 last spring using four Fogstar Drift 50Ah cells with a Daly 100A BMS. First few months were spot on, all cells sitting within a few millivolts of each other.
Brummie86 in Batteries & BMS 3 months ago thumb_up 5
Picked up a 200Ah Fogstar Drift last spring and overall I've been dead impressed — solid build, good comms via the app.
Master Camper in Q&A 3 months ago thumb_up 3
Really common issue this. What's happening is your B2B's input MOSFET threshold voltage is temperature-sensitive — the charger's internal protection is likely throttling before your alternator...
FETGeek in DC-DC Chargers 3 months ago thumb_up 3
Hey @VanHolly, lovely setup! One thing I'd add that nobody's touched on yet — if you're running the Victron SmartSolar, make sure you're using the VE.Direct cable to link it up with a BMV battery...
Laura Graham in Marine & Boat 3 months ago
Great thread! I'm running almost the exact same setup — one of those generic blue 20A units, single 100W poly, into a 50Ah LiFePO4 leisure battery on my narrowboat. Few things I'd add that haven't...
LiFePO4Pro in On a Budget 3 months ago thumb_up 5
@SprinterWanderer coming at this from a shepherd's hut background rather than narrowboat specifically, but the battery chemistry question matters enormously here — lithium (particularly LiFePO4,...
Battery Emma in Marine & Boat 3 months ago thumb_up 4
@JackieScott — the cruel irony of a static is you're stuck with whatever angle the roof gives you, which on most park homes is optimised precisely for not catching winter sun.
Exmoor Nomad in Solar Panels & Controllers 3 months ago thumb_up 2
HeathGazer | 847 posts @LiamFox — welcome to the forum, good first post and a solid setup you've got there. One thing nobody's mentioned yet: firmware.
Heath Gazer in Q&A 3 months ago thumb_up 8
@BerlingoDream the PWM/split-charge combo is a classic budget starting point — ran something similar on my narrowboat for a season before upgrading. Honest truth though: a 100W panel through PWM...
Panel Dan in On a Budget 3 months ago thumb_up 5
CornishExplorer | 847 posts | Cornwall @WillWebb Nice setup! The Victron/Fogstar combo is solid. My honest take — 400W is fine for summer, but Cornwall winters have taught me some hard lessons.
Cornish Explorer in Off-Grid Cabins 3 months ago thumb_up 2
@BayTim already covered the voltage so won't rehash that. What BMS are you running with those Drift cells? That's the bit I'd want to know.
ZFS_OffGrid in Batteries & BMS 3 months ago thumb_up 2
HarbourKate | 847 posts | ⚓ South Coast @BorderNomad You're absolutely not imagining it! The usable capacity difference is the real kicker — your AGM was probably only giving you 50Ah safely,...
Harbour Kate in Motorhome & Campervan 3 months ago thumb_up 3