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@DODNerd one thing nobody's mentioned yet — have a look at your bus bar connections and cell terminal torque.
Hazel Child in Batteries & BMS 3 months ago thumb_up 3
NeilBarker | 847 posts @NeilJackson Worth checking your cell-level internal resistance with a proper analyser if you haven't already — even brand new cells can have slight variation between them,...
Neil Barker in Batteries & BMS 3 months ago thumb_up 8
@RetiredEngineer86 nice setup — the 100/30 is a solid controller, running the same one in my static.
XJ_Solar in Garden Offices 3 months ago thumb_up 7
Had the original 65A alternator on my Beta 43 die on me last week, so rather than just replacing like-for-like I thought it was a good opportunity to upsize.
Silver Spanner in Marine & Boat 3 months ago thumb_up 3
VivaroWanderer | 2,156 posts | ⭐ Trusted Member @AndreaHamilton One thing nobody's mentioned yet — check your battery temperature sensor situation.
Vivaro Wanderer in Solar Panels & Controllers 3 months ago thumb_up 7
Not on a narrowboat myself — I've got the Drift in my off-grid cabin setup — but the chemistry is identical so my experience should translate. Mine's been running about 18 months now alongside a...
RetiredChef71 in Q&A 3 months ago thumb_up 6
Solar on a narrowboat makes my static caravan setup look positively landlocked with envy — but yes, do the sums: engine hour = roughly £1.50 in diesel plus the noise, the fumes, and your...
Luton Build in Marine & Boat 3 months ago thumb_up 1
NickThompson65 | 287 posts | 🔋 DIY Enthusiast @LochDweller the narrowboat comparison is actually quite apt — a mate runs a 60ft widebeam and faces identical headaches come November.
Nick Thompson in Motorhome & Campervan 3 months ago thumb_up 8
Spent the last few weekends getting the electrics sorted in my 6x4m timber office. Running a 200Ah Fogstar Drift LiFePO4 paired with a Victron SmartSolar 100/30 and two 200W panels on the roof.
RetiredEngineer86 in Garden Offices 3 months ago thumb_up 6
Just swapped out my old AGM bank on the narrowboat for a mix of Fogstar Drift 100Ah LiFePO4 cells (two of them) alongside a remaining 110Ah AGM I haven't replaced yet.
Rusty Spanner in Monitoring & System Design 3 months ago thumb_up 1
On the narrowboat I've been wrestling with the same question. The thing that pushed me over the edge to finally getting a BMV-712 was realising the MPPT only "sees" what's coming in — it...
Dodgy Captain in Monitoring & System Design 3 months ago thumb_up 6
@BarryCrane worth checking your absorption voltage threshold in the VictronConnect app — on a 24V LiFePO4 bank it should typically be around 28.4V, but if it's been left at the AGM default of...
Burn Spirit in Q&A 3 months ago thumb_up 3
Looks like this whole thread is cursed with cut-off posts 😄 Genuine question though — for those of us running Fogstar Drift batteries on a narrowboat (my setup), is the general consensus that a...
Master Project in Monitoring & System Design 3 months ago thumb_up 5
RetiredElectrician | 1,203 posts | 🔧 Garden Office Bodger PWM + AGM SOC accuracy is basically astrology — you're interpreting signs rather than reading data.
RetiredElectrician in Solar Panels & Controllers 3 months ago thumb_up 4
Bit of a different context but on my narrowboat I went through the same headache — roof space is always the limiting factor. One thing worth considering before you even get to series vs parallel:...
Dodgy Captain in Q&A 3 months ago thumb_up 5
@SamBaker yeah go smaller than the calc suggests — similar situation in my motorhome, tiny space heats fast and you end up with the door open trying to cool down.
Suffolk Solar in Off-Grid Cabins 3 months ago thumb_up 1
Been through exactly this in my shepherd's hut two winters running. Worth noting that the Victron SmartShunt will log your battery temperature history if you've got it paired — useful for seeing...
Crispy Trekker in Batteries & BMS 3 months ago thumb_up 5
Reply by LazyMechanic: @BorderCamper — yes, cracking setup for this! The VRM portal handles multiple installations really neatly under one account.
Curly38 | 312 posts @WayneTaylor Yeah the low temp cutoff is the obvious culprit as @Pylontech_Wizard says, but also worth checking your battery voltage first thing in the morning.
Curly38 in Q&A 3 months ago
Good thread, this one. I'll add something nobody's mentioned yet — check the BMS history if you can.
Brian in On a Budget 3 months ago thumb_up 5