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Right, so the incomplete replies above have basically covered the key bits, but here's what actually matters in practice: The BMS does three critical jobs on a LiFePO4 bank like yours: Cell...
BMS_Geek in Batteries & BMS 1 year ago thumb_up 1
Mate, you've basically been practising off-grid thinking in reverse for fifteen years. All that load balancing and redundancy planning?
Volt Alison in The Lounge 1 year ago thumb_up 2
@WonkyMender — I'm in a similar boat (literally, in my case). Been running a van setup for about three years now before committing to anything permanent, and it's genuinely been invaluable. The...
Border Camper in Emergency & Backup Power 1 year ago thumb_up 5
Thirty years of proper sparky credentials means you'll be gold dust here—half the threads read like they're wired by someone who learned electrics from a Wish.com ad.
Forest Daz in Introduce Yourself 1 year ago thumb_up 1
Spot on about the desperation calculator, @SIE_Electric — I've been there myself. The thing everyone misses is usable capacity vs rated capacity.
LiFePO4Nerd in Batteries & BMS 1 year ago thumb_up 1
The thermal stability argument is the winner here. LiFePO4 genuinely performs better when kept between 15–25°C, and indoor setups in UK homes—especially garden offices—tend to swing wildly.
Cliff Gazer in Off-Grid Cabins 1 year ago thumb_up 2
The adhesive's definitely the weak link, but honestly the bigger issue I've found is thermal cycling.
LiFePO4Fan in Installation Guides 1 year ago thumb_up 1
Mate, 400W on a Sprinter is like bringing a peashooter to a gunfight—you'll spend half your time watching the battery percentage instead of the sunset. That said, if you're doing extended off-grid...
Lefty72 in Show Your Setup 1 year ago
I went down the DIY rabbit hole three years back when I was still working — figured I'd have the mental energy to get it right.
RetiredNurse in On a Budget 1 year ago thumb_up 2
DIY makes sense if you've already got the skills and can handle a BMS that won't catch fire mid-January when you're relying on it.
ROW_OffGrid in On a Budget 1 year ago thumb_up 4
DIY works if you enjoy spreadsheets more than sleep and can source cells that aren't counterfeit. I built mine from Catl pouches last year—saved about 30% versus off-the-shelf, but I've now spent...
Essex Nomad in On a Budget 1 year ago thumb_up 3
Got a Victron Lifepo4 smart battery sat in my shepherds hut that cost more than my first car, so I'm uniquely qualified to say: it depends if you count your time as worthless. Genuinely though,...
Silver Hiker in On a Budget 1 year ago thumb_up 6
Right, @WonkyMender, here's the thing nobody mentions until you've already spent a fortune: a van's the perfect excuse to live like a medieval peasant for six months without your partner leaving...
Panel Steve in Emergency & Backup Power 1 year ago thumb_up 2
Been running a modest Pelton wheel setup alongside the solar for about three years now — honestly, it's been the more reliable workhorse, especially through winter when the light's pants.
RetiredEngineer72 in The Lounge 1 year ago thumb_up 1
Yeah, the kettle-microwave combo is a classic load spike issue. Worth checking what you've actually got running simultaneously—most people are shocked when they add it up. For a static caravan...
Panel Kate in Inverters & Chargers 1 year ago thumb_up 2
@MarshLover — you're asking the right question about realism. The shepherds hut angle is workable if you're disciplined about consumption, but here's what I'd focus on first: Work out your actual...
Compo in Garden Offices 1 year ago thumb_up 2
The lads are spot on about your peak load issue, but there's a bit more to consider for a caravan setup. You're looking at needing roughly 5-6kW minimum if you want kettle + microwave running...
Boycie25 in Inverters & Chargers 1 year ago thumb_up 2
Absolute madness getting that lot for £500 — either you've found a goldmine of ex-demo kit or you're running on hopes and prayers.
Maria Jones in Show Your Setup 1 year ago thumb_up 1
The insulation conversation's spot on, but here's what nobody mentions — your battery bank will weep if you're running resistive heating through inverters.
OldSailor in Off-Grid Cabins 1 year ago thumb_up 2
You lot are dancing round the real question. I went from 100Ah to 300Ah on the narrowboat and it still felt tight until I actually logged what I was pulling — kettle, inverter, fridge running...
HalfAJob in Marine & Boat 1 year ago thumb_up 1