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BrianKnight @TomCampbell Had something similar with my static caravan setup last February — not quite as dramatic as being moored in minus four, but woke up to no heating and a very unhappy BMS on...
Brian Knight in Batteries & BMS 2 months ago thumb_up 1
@DustyCaptain one thing worth checking — the Orion-Tr Smart 18A has a 25A input current draw at 12V in, so your alternator wiring and fusing needs to handle that regardless.
Spud79 in DC-DC Chargers 2 months ago thumb_up 1
DazBarker93 | Posts: 847 | Location: Yorkshire Hey @Tina1971, nice setup! The Drift cells have a solid reputation on here for the price point.
Daz Barker in Batteries & BMS 2 months ago thumb_up 7
@OddJobBob79 seen this exact thing with mine. Turned out to be the AC input sense settings in VE.Config — had it set too sensitive and it was interpreting the inrush from a small resistive load as...
Grumpy Wanderer in Inverters & Chargers 2 months ago thumb_up 5
I've had a Renogy 200W flexible panel stuck down on the roof of my Transit Custom since last spring and it's been mostly brilliant, but I'm noticing something odd.
Forest Solar in Motorhome & Campervan 2 months ago thumb_up 5
Been running a Multiplus 12/3000/120 in my off-grid shed setup for about eight months now and it's been mostly brilliant, but I've started getting random shutdowns when I pull big loads.
Rodney3 in Inverters & Chargers 2 months ago thumb_up 2
Not a cabin setup myself — doing a van conversion — but I had a nightmare with condensation before I sorted my ventilation properly.
Thommo9 in Off-Grid Cabins 2 months ago thumb_up 6
Gazza99 replied: @KarenEvans Worth checking whether your MPPT is actually set to lithium profile or if it's defaulted back to sealed lead acid — mine did exactly this after a firmware update and...
Gazza99 in Motorhome & Campervan 2 months ago thumb_up 9
Bit of a weird one and I'm hoping someone here has seen this before. I've got a Multiplus 2 48/3000/35 installed in my off-grid cabin setup, running off a 48V 200Ah lithium pack (Lifepo4, 16-cell...
@LouiseJames honestly this is the question I keep asking myself too — I've got a tiny house setup rather than a van but the solar struggle is real either way. What's your panel angle like?
WD40Wizard23 in Q&A 2 months ago thumb_up 2
Last winter I had my 280Ah LiFePO4 bank trip offline twice during cold snaps — both times overnight when temps dropped to around 2–3°C inside my insulated battery box.
Nick Thompson in Batteries & BMS 2 months ago thumb_up 4
RobHenderson | 847 posts Worth adding to what @T5Solar said - check your BMV-712's Peukert exponent and charge efficiency factor settings.
Rob Henderson in General Chat 2 months ago thumb_up 8
Yeah this is a known quirk with lithium in cold weather. The internal resistance of LiFePO4 cells increases noticeably when temperatures drop, which causes voltage to sag more under load — so the...
Thommo53 in Q&A 2 months ago thumb_up 9
TracyMitchell | 189 posts | Location: on the water Been running a 48v setup on my boat for two years now — the cable sizing alone made it worthwhile.
@Liz1979 worth checking your Victron app history rather than guessing — the SmartSolar logs SOC and voltage over time, so you can actually see when the drop started correlating with ambient temps...
CurrentAffairs in Q&A 2 months ago thumb_up 6
Swapped out my old AGM setup for a pair of Fogstar Drift 100Ah lithiums last spring and honestly thought I'd cracked it — proper smug about it for about three weeks. Then my Victron SmartSolar...
Alex Hobbs in General Chat 2 months ago thumb_up 4
@FormerMechanic15 Worth keeping an eye on how the two controllers negotiate charging — in my experience the Renogy will tend to back off once the Victron has pushed the bank to absorption, but...
DuctTapeDave60 in Solar Panels & Controllers 2 months ago thumb_up 2
Got a small solar cabin running a 5kWh Fogstar Drift LiFePO4 bank with a 1.2kW array (4 × 300W Renogy panels) and a Victron Multiplus-II 3kVA as the inverter/charger.
OffGridFreak in Off-Grid Cabins 2 months ago thumb_up 4
@RustyTinker 200Ah sounds like loads until you're sat in the Cairngorms in January. The Webasto fuel pump ticks along fine but your parasitic loads are quietly murdering you — fridge still...
SOC_Nerd in Motorhome & Campervan 2 months ago thumb_up 7
Midge55 | 203 posts @T6Project Before you get too attached to any layout, walk the roof at different times of day and watch where shadows fall from the chimney and any handrails.
Midge55 in Marine & Boat 2 months ago thumb_up 9