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LochChild | 📍 Array | ⚡ Cabin/Static/Shepherds Hut builds @TelScott75 makes a fair point — recharge is the bit that bites you. 5kWh is workable for a shortish outage if you're disciplined.
Loch Child in Off-Grid Cabins 6 months ago thumb_up 6
MoorLee | Posts: 312 | 🔋 Battery Hoarder @Midge66 Welcome to the glamorous world of off-grid living in Britain, where the sun doesn't charge your batteries AND the cold stops you using them...
Moor Lee in General Chat 6 months ago thumb_up 9
@BatteryDoug — classic MultiPlus gotcha, this one. Had almost identical grief with my motorhome setup last summer. The thing people miss is that under a heavy load, the voltage at the battery...
Curly16 in Inverters & Chargers 6 months ago thumb_up 8
@BerlingoLife is right that it's worth understanding the mechanism. The key thing with PWM is that it essentially drags the panel voltage down to battery voltage to regulate — so when your...
Peak Wanderer in General Chat 6 months ago thumb_up 8
Just to add to what @LindaPrice87 is getting at — with PWM you're essentially forcing your panel to work at battery voltage rather than its optimal operating point.
Lefty25 in Q&A 6 months ago
Just picked up a 35ft narrowboat and want to get off the grid as much as possible. Currently it has a single 110Ah leisure battery that the previous owner was running off the engine alternator.
T6 Project in Marine & Boat 6 months ago thumb_up 1
@CrispyMender 8S1P on 24V doesn't add up — eight cells in series gives you 25.6V nominal which is technically a 24V bank, fair enough, but you're only getting 280Ah capacity.
Bay Tim in Batteries & BMS 6 months ago thumb_up 6
So I've got a 200W monocrystalline panel on the roof of my Transit conversion, wired into a Victron SmartSolar 75/15 MPPT controller, charging a 100Ah lithium (LiFePO4) battery.
Chris in Solar Panels & Controllers 6 months ago thumb_up 2
Been out in the van this week up in the Lakes and despite it being absolutely brass monkeys (-3°C overnight, barely 6°C by midday), my Renogy Rover 40A MPPT has been throwing up some surprisingly...
Lakeland Solar in General Chat 6 months ago thumb_up 5
SaltyRigger | Posts: 214 | Location: Array Worth adding — the split-charge relay also risks confusing the alternator load management on a Euro 6 engine.
Salty Rigger in Motorhome & Campervan 6 months ago thumb_up 2
After two weeks of proper grey skies here in the Peak District, my 400W of panels produced almost nothing useful and I was genuinely struggling to keep the 100Ah lithium topped up enough to run...
Jackie Scott in Emergency & Backup Power 6 months ago thumb_up 4
Ha, love the chain of cut-off posts here! @LuckySkipper is probably right about the default profile being the culprit.
Victron_Master in Motorhome & Campervan 6 months ago thumb_up 6
Ella1966 | 847 posts @CliveBaker Ha, I recognise that "months of dithering" — been there myself!
Ella in Inverters & Chargers 6 months ago thumb_up 1
T6Project | 89 posts | Array What was your heating situation during those three days? That's what I'm trying to nail down for my own setup.
T6 Project in Emergency & Backup Power 6 months ago thumb_up 6
Currently on a 32ft narrowboat and trying to sort out the charging setup properly. Got 400W of Renogy panels on the roof feeding into a Victron SmartSolar 100/30, which works a treat when we're...
Dai Young in Q&A 6 months ago
Good shout from @LDVSolar on the inverter — I'd add that on my own van setup I ran a Victron Multiplus 12/3000 and even that occasionally threw a wobbly with certain EVSE handshake timing.
WhatsAFuse in Motorhome & Campervan 6 months ago thumb_up 1
NicolaTaylor72 | 58 posts Had this on my boat last season with a 75/15 — worth checking whether it's actually the MPPT dropping BT or your device's Bluetooth stack being the culprit.
Nicola Taylor in Q&A 6 months ago thumb_up 2
Zappi + Node-RED automation watching your Victron MQTT feeds is the combo that'll stop you accidentally hoovering your Fogstar empty at 2am because you forgot the kettle was on 🔌
Ben Jackson in Q&A 6 months ago thumb_up 4
Nobby78 | Posts: 847 | Location: Derbyshire @LesHarris yes, essentially redundant in your case mate.
Nobby78 in Motorhome & Campervan 6 months ago thumb_up 7
Brummie86 | Posts: 847 | Location: Array Yeah had this exact issue in my van last January. Turned out my battery connections had developed a tiny bit of resistance — cold temps made it way worse.
Brummie86 in Inverters & Chargers 6 months ago thumb_up 4