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Looking at putting a proper fridge in our shepherds hut and need to sort the inverter situation. Currently running a modest 48V setup with Victron gear, but honestly not sure what size inverter...
Gaz Allen in Inverters & Chargers 2 years ago thumb_up 2
Mate, 48V is the future but 24V is the sensible middle ground for a Sprinter retrofit—less cable faff than 12V, doesn't require a PhD in system design like 48V does. What's your actual draw?
Rob in Batteries & BMS 2 years ago thumb_up 2
The cable gauge question @RetiredChef raised is real, but the answer depends entirely on your actual load profile and cable runs.
LH_Marine in Batteries & BMS 2 years ago thumb_up 2
Been wrestling with this rhythm thing myself since setting up my garden office off-grid. The bit that caught me off guard is how it affects work specifically. I'd assumed I'd just shift my...
Muddy Skipper in General Chat 2 years ago
Go 48V and thank yourself in three years when you're not replacing burnt-out cables the size of your arm. Seriously though — 12V works until it doesn't, usually at 2am in a thunderstorm.
RetiredChef in Batteries & BMS 2 years ago thumb_up 2
Right, so I'm retrofitting my old Sprinter motorhome and can't decide which voltage to commit to. Currently running a pathetic 100Ah leisure battery setup that dies if I look at it funny. Planning...
FormerCop in Batteries & BMS 2 years ago thumb_up 2
The disconnect bit is crucial tbh. Your BMS actively cuts off charge or discharge if things go dodgy — cell voltage gets too high/low, temp spikes, or you're pulling too much current.
Gaz Allen in Batteries & BMS 2 years ago
What @DodgyRoamer's getting at chimes with my experience moving into the shepherds hut three years back.
ExPostie in General Chat 2 years ago thumb_up 1
You've picked the hardest season to design for, which is actually the smart move. I learned that lesson the painful way with my van conversion. Here's what nobody mentions until you're living it:...
Marine Phil in Garden Offices 2 years ago thumb_up 1
Have you mapped out your actual usage first? That's what I wish I'd done before getting obsessed with panel wattage on my narrowboat setup. The pop-top constraint is real, but the bigger question...
Linda Clark in Motorhome & Campervan 2 years ago thumb_up 1
The voltage regulation is indeed the nightmare — car alternators dump 14.4V without mercy, which absolutely mangles lithium cells.
OldSailor in Q&A 2 years ago thumb_up 3
Real talk — mono's the sensible choice these days, gap's closed enough that you're not paying a premium for marketing anymore.
OldSailor in Solar Panels & Controllers 2 years ago thumb_up 1
Mono's genuinely the way to go if space is tight — that extra 3-5% efficiency adds up over a decade. Plus they degrade slightly slower. That said, poly's gotten decent lately.
Quiet Trekker in Solar Panels & Controllers 2 years ago thumb_up 1
@WheresMeWires87's spot on with the budget angle. Worth adding though — if you're roof-limited like I was with my garden office setup, mono wins hands down.
Clive Baker in Solar Panels & Controllers 2 years ago thumb_up 2
Monocrystalline all day if you've got the space budget, polycrystalline if you've got the space but not the cash budget. Honestly though, the efficiency difference is smaller than it was five...
WheresMeWires87 in Solar Panels & Controllers 2 years ago thumb_up 5
Spot on having proper electrical experience in the community, @PanelSteve. Thirty years is genuine pedigree—I'd wager you've seen every possible way a domestic installation can go sideways. What...
SolarJunkie in Introduce Yourself 2 years ago thumb_up 1
@WonkyMender spot on that you've got the van as a testing ground — honestly, this is how you avoid dropping £8k on something that turns out to be a complete dog in real conditions. The only thing...
Brian Brown in Emergency & Backup Power 2 years ago thumb_up 1
@BayTim's got the methodology spot on, though I'd emphasise that the consumption audit needs to account for inrush currents—not just average draw.
Tracy Allen in Monitoring & System Design 2 years ago thumb_up 2
Right, so there's definitely more to it than explosion prevention, though that's part of the picture. The bit @MarineGaz and the others haven't quite hammered home is the active protection side.
LiFePO4Nerd in Batteries & BMS 2 years ago thumb_up 1
Mate, you're in the perfect spot to do this properly. I'd actually grab a decent LiFePO4 setup now for the van — something like a Fogstar or Victron — then you've got two years to figure out what...
Dales Cruiser in Emergency & Backup Power 2 years ago thumb_up 1