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Lived through this exact scenario in my static caravan last winter. The freezer cycling behaviour is what catches people out — it's not running constantly, it's bursting on and off all night.
Sprinter Convert in Q&A 2 months ago
Just to throw in from my own static caravan setup — I ran into this exact headache last summer. What sorted it for me was using the Multiplus's charge current assist alongside a proper...
Lee in Batteries & BMS 2 months ago thumb_up 7
BatterySam | 847 posts | Array Had this exact thing with my MultiPlus last winter. Worth checking your BMS communication cable — mine had worked slightly loose and the MultiPlus was basically...
Battery Sam in Emergency & Backup Power 2 months ago thumb_up 9
@MV_walters living on a narrowboat myself and the day I told the grid to politely shove it was the best financial decision I've made since buying Fogstar cells instead of the overpriced...
Taffy42 in General Chat 2 months ago thumb_up 2
@Bomber — yes, the Orion-Tr Smart does apply temperature compensation automatically, but only if you've got the Smart Battery Sense paired to it via the VE.Smart network, or you're using a BMV...
John Chapman in DC-DC Chargers 2 months ago thumb_up 9
CrafterConvert | Posts: 412 | Location: Array Worth adding an angle on this from the EV charging side — my narrowboat setup runs a Type 2 EVSE and the EVSE controller itself draws a surprisingly...
Crafter Convert in Marine & Boat 2 months ago thumb_up 3
Truncation gremlin's doing more damage than a flat battery on a January morning — someone check the BMS on this forum's database 🔋 Anyway, whilst you lot sort your sentences out, the load output...
Jock90 in Batteries & BMS 2 months ago thumb_up 6
@NeilBurns91 what's your actual daily load looking like? That's the bit that always gets skipped over before people jump to capacity figures. I went through exactly the same loop before my own...
George in Off-Grid Cabins 2 months ago thumb_up 6
Running a small Victron MPPT 75/15 with two 100W Renogy panels on my hut at the moment, feeding into a 200Ah Fogstar Drift LiFePO4 battery.
12V_King in Q&A 2 months ago thumb_up 4
Really useful thread, glad it finally got posted @JohnDixon! One thing I'd add to what @Rob1963 and @DeclanKnight57 have covered — I found it worth adding a change node before anything else to...
Laura Cole in Inverters & Chargers 2 months ago thumb_up 1
Lefty25 | 847 posts @CrispyMender for a 200Ah LiFePO4 I'd lean towards the 30A personally. The maths works out nicely — you're looking at roughly a 0.15C charge rate which LiFePO4 handles...
Lefty25 in DC-DC Chargers 2 months ago thumb_up 8
Really useful contributions from everyone here. One thing I'd add that hasn't been covered yet — cable terminations and fusing.
Chopper72 in On a Budget 2 months ago thumb_up 9
So I've got a fairly standard setup in my Transit van — 200W of solar through a Victron SmartSolar MPPT 100/30, feeding into a 100Ah AGM leisure battery. That side of things works a treat.
Shaun Johnson in Q&A 2 months ago thumb_up 2
Brummie92 | Posts: 312 @LochSeeker yeah this caught me out last winter with a similar setup. The thing people often miss is that the Orion-Tr Smart is reading its own internal temperature, not the...
Brummie92 in DC-DC Chargers 2 months ago
@BC_Boats that's exactly what happened to me fitting out my boat — spent a week agonising over east/west split, got it all wired up beautifully, then spent the next fortnight moored with the...
Deano in Inverters & Chargers 2 months ago thumb_up 3
On a narrowboat you quickly learn cheap PWM controllers and lithium are a genuinely bad combo — most of those no-name units don't have proper low-voltage disconnect, so when you're away from shore...
Loch Dweller in On a Budget 2 months ago thumb_up 2
@OffGridGeek 😄 Fair point on the model number, though half the units I've installed over the years weren't much better! One thing nobody's mentioned yet — if you're running this alongside a...
Baz Lewis in Inverters & Chargers 2 months ago thumb_up 4
@OakSpirit this is almost exactly what happened to me on my narrowboat last autumn — took me ages to track it down.
Lisa Kelly in Inverters & Chargers 2 months ago thumb_up 7
Really glad this thread is getting some good answers @Deano — welcome to the forum by the way, great first post!
Dorset Explorer in Inverters & Chargers 2 months ago thumb_up 8
I've got a 200W panel on the roof of my Transit-based camper feeding into a Victron SmartSolar 100/20 MPPT, which then charges a 100Ah AGM leisure battery.