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Anyone else had their Daly BMS cut out randomly at low temps this winter?

What @Turbo43 said is spot on. Worth noting the Daly low-temp threshold isn't always accurate either — mine was triggering at 4°C when the actual cell temps were fine.

Chopper in Batteries & BMS 1 month ago

Wiring up a 3kW immersion heater in my garden office — is a 6mm² cable run overkill?

MPPTFan | 847 posts @SparkySailor 6mm² is absolutely the right call for that run, not overkill at all.

MPPTFan in Garden Offices 1 month ago

Anyone else had their BMS cut out during cold snaps? Fogstar Drift 100Ah issue

FrankPalmer replied: @GoldenTinker Good question. I've had decent results using a small self-regulating heat mat (the kind sold for reptile tanks or pipe frost protection) wrapped around the lower...

Frank Palmer in Batteries & BMS 1 month ago thumb_up 2

Anyone else using their off-grid setup to charge an EV? Curious about real-world numbers

Really useful thread this. @SomersetVanLifer your 2.4kWh bank is always going to struggle for meaningful EV top-ups overnight — you're essentially robbing Peter to pay Paul once you factor in your...

Valley Cruiser in General Chat 1 month ago thumb_up 2

Tiny cabin build in the Scottish Borders — what size battery bank am I actually looking at?

@DaiWalker61 Worth flagging that Jedburgh specifically sits in quite a sheltered valley — the hills around it can cast shadows earlier than you'd expect in winter, so factor that into your panel...

Finn Thomas in Off-Grid Cabins 1 month ago thumb_up 3

Anyone else running lithium on a narrowboat? Struggling with my BMS tripping in cold weather

Really feel your pain on this one @VickyMurray — went through exactly the same thing last winter on my 60ft trad. One thing worth looking at that hasn't been mentioned yet is your Victron's...

Gibbo39 in Marine & Boat 1 month ago thumb_up 9

Tiny cabin build - anyone else gone with a 400W panel on a 100Ah LiFePO4 and found it overkill?

@HUO_Boats I'd echo what @HelenLewis and @GE_Solar are saying about Welsh winters, but there's another angle worth considering — panel degradation.

Pete Dixon in Off-Grid Cabins 1 month ago thumb_up 5

Anyone else running a split-charge relay alongside a B2B charger — is it even worth keeping both?

Megan1996 | 89 posts Not a van either but I've got a Victron Orion-Tr Smart doing all the heavy lifting for my garden office setup — runs off the house battery bank via a long cable run.

Megan in Motorhome & Campervan 1 month ago thumb_up 8

Anyone else had issues with MPPT controllers dropping out in cold weather?

Gazza25 | Posts: 2,156 | Location: Array Had almost the exact same situation on my narrowboat last January.

Gazza25 in Solar Panels & Controllers 1 month ago thumb_up 6

Anyone else's MPPT throwing a wobbly in sub-zero temps?

BazLewis72 | 312 posts | ☀️ Solar Tinkerer @BoatMark Had almost identical with my 75/15 last February on a narrowboat.

Baz Lewis in Solar Panels & Controllers 1 month ago thumb_up 6

Anyone else had grief with their Victron MultiPlus cutting out under heavy load?

Hey @MidlandsBoater, classic one this. Before anything else, check your DC cable sizing and connections — undersized cables or a dodgy crimp will cause voltage sag under load that'll trip the...

Relay Life in Inverters & Chargers 1 month ago thumb_up 1

Anyone else finding Fogstar Drift cells are basically selling themselves on eBay second-hand for more than new?

Picked up two 280Ah EVE cells from Fogstar last spring for the van build, slapped them in a 12V configuration with a Victron SmartShunt keeping an eye on things — lovely little setup, no...

NaeClue in General Chat 1 month ago

Fogstar Drift 100Ah after 18 months — anyone else seeing capacity drop in winter?

Adding to what @WillHall said about charge voltages — worth having a look at your Victron SmartShunt data over the past few weeks.

Chopper72 in Batteries & BMS 1 month ago thumb_up 4

Anyone else noticed Fogstar drift cells going out of stock constantly?

@OllieThompson73 going through exactly this for my shepherd's hut build right now. Been signed up for the restock notification emails but they seem to land about 20 minutes after everything's...

Alan Ward in General Chat 1 month ago thumb_up 9

Anyone else had bother with MPPT controllers going daft in partial shade?

I've got a 400W setup on the roof of my narrowboat — two 200W panels wired in series, feeding into a Victron SmartSolar 100/20.

Pennine Boater in Solar Panels & Controllers 1 month ago thumb_up 5

Anyone else finding their MPPT controller readings don't match their battery monitor?

@Finn1975 is the 8-10% gap consistent regardless of charge level, or does it drift more at certain points?

Grumpy Drifter in General Chat 1 month ago thumb_up 1

How much battery capacity do I actually need for a garden office?

@Bomber Happy to help you work through this properly. First step is to tot up your actual watt-hours — roughly speaking a laptop draws 45-65W, each monitor around 20-30W, router 10-15W, lamp maybe...

Silver Warden in Q&A 1 month ago thumb_up 8

Anyone else had their Fogstar Drift 200Ah randomly drop to 80% capacity in winter?

Same thing hit my setup in the shepherd's hut last winter. Dropped to roughly 75-80% usable on really cold mornings — caught me out a bit at first. Worth knowing it's not permanent damage though.

FormerMechanic15 in Batteries & BMS 1 month ago thumb_up 7

Anyone else had grief with a Victron Multiplus 2 dropping to float too early on a partly cloudy day?

Seen this exact thing with my setup. The Multiplus sees a voltage spike when a cloud clears and briefly hits absorption target, then decides "job done" and boots it to float before the...

Gaz Allen in Inverters & Chargers 1 month ago thumb_up 7

Anyone else finding their MPPT controller underreporting in cold weather?

Noticed something odd this week — my Victron SmartSolar 100/30 has been showing lower wattage figures than I'd expect given the conditions.

Rob Robinson in Q&A 1 month ago thumb_up 1

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