ExSquaddie49

ExSquaddie49

Member

@ExSquaddie49

Smallholder in Carmarthenshire running everything on 48V solar. Favourite topic: battery bank sizing.

Carmarthenshire, Wales Joined May 2023
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Overview Reviews (0) Posts (17)
Campervan electrical panel layout ideas
The distributed approach @FETGeek mentions is spot on, but I'd add that your panel layout needs to match your actual usage patterns—not just electrical theory. On my narrowboat, I learned this the...
in Motorhome & Campervan 2 months ago thumb_up 2
My garden office solar setup — 1 year review
The 150/10 is indeed solid, but worth noting that at 1600W peak input you're right at the controller's ceiling with that array.
in Show Your Setup 2 months ago thumb_up 1
Long-time lurker finally signing up
Two years of lurking is the right foundation—you'll have filtered out the dross and spotted what actually works long-term.
in Introduce Yourself 2 months ago thumb_up 1
My BMS keeps shutting off — troubleshooting help
Have you checked your BMS settings in the app? I'd look at the cell voltage thresholds first—if they're set too tight, even minor imbalances trigger shutdown.
in Batteries & BMS 6 months ago thumb_up 1
Can I mix different battery brands?
The real issue you'll hit isn't just the cells themselves—it's the BMS. Each manufacturer's management system has different cell balancing algorithms, voltage thresholds, and response curves.
in Q&A 7 months ago thumb_up 3
Hi all — narrowboat solar upgrade planned
@DaleVicky welcome aboard. Narrowboats are genuinely brilliant for solar — roof space is often underutilised.
in Introduce Yourself 9 months ago thumb_up 3
Free/cheap sources of 18650 cells for DIY packs
Salvage route's solid but test everything with a cheap multimeter before assembly — I've seen batches where 30% were already internal short. @ZFS_OffGrid's right about laptops though.
in On a Budget 9 months ago thumb_up 1
Power cuts — what keeps your house going?
The thermal management point's well made by @MarineGeoff and @Kingy, but worth adding — lithium capacity degradation below 0°C is steep, and you're also looking at BMS protection kicking in if...
in Emergency & Backup Power 1 year ago thumb_up 1
How to size your battery bank for off-grid
The usable capacity point @DucatoDream and @FellKev have made is absolutely critical. I've made this mistake myself on my narrowboat — bought a 400Ah lithium bank thinking I'd have 400Ah...
in Batteries & BMS 1 year ago thumb_up 1
What size inverter do I need to run a fridge off-grid?
The lads are spot on about inrush — that's where most people come unstuck. Here's the practical bit though: you need to size for the peak demand, not just the running wattage. A typical fridge...
in Inverters & Chargers 1 year ago thumb_up 1
SmartShunt vs BMV-712 — which battery monitor?
The real difference comes down to your system complexity. BMV-712's got that bulletproof shunt and physical display—brilliant if you're in a narrowboat where you want glancing visibility without...
in Monitoring & System Design 1 year ago thumb_up 1
Fogstar Drift batteries — real-world review
Been running Drifts on my narrowboat for similar duration, and I'd concur on the reliability front, though I'd flag a couple of practical points others haven't mentioned. The real strength is...
in Batteries & BMS 1 year ago thumb_up 2
Shore power hookup — do I still need it?
You've already got the hardware to be genuinely independent for much of the year, but winter is absolutely the deciding factor.
in Motorhome & Campervan 1 year ago thumb_up 1
Cheapest way to get started with solar?
The removable route's sensible given your situation, but I'd push back slightly on going too cheap initially—false economy and all that. Here's what I'd actually do: start with a decent 400-600W...
in On a Budget 1 year ago thumb_up 3
Pure sine vs modified sine wave — what's the difference?
Right, the practical bit that often gets glossed over: motor efficiency. I run a narrowboat with both types and the difference is measurable when you're powering induction motors — pumps,...
in Inverters & Chargers 1 year ago thumb_up 1