@T6Solar this caught me out too when I set up my garden office system. The key thing that helped me was sketching an actual physical diagram — pen and paper, old school — showing each measurement...
@Taffy @VivaroNomad second what VivaroNomad said about the 3B+ hitting its limits. I ran one for about four months on my garden office setup before swapping to a Pi 4 (4GB model).
@PaulCross good summary there. One thing I'd add from my own setup — if you're running this for a garden office or somewhere with a fairly predictable daily load pattern, it's worth logging a few...
Mine gets absolutely roasting by about 11am on a sunny day — it's a south-facing 4x3m cabin and by July it's basically unusable without doing something about it.
Noticed something similar with my setup recently and wondering if others have experienced this.
Running a Victron SmartSolar MPPT alongside an Orion-Tr Smart (non-isolated, for charging from my...
@LisaStewart71 I've got a garden office setup and went through similar head-scratching when sorting my battery comms.
Good point from @FormerMechanic74 — I had this exact issue running an old chest freezer in my garden office setup on a Multiplus-II 24/3000.
What actually fixed it for me was enabling the...
@Spider been there, done that — lost a decent 200Ah Fogstar lithium to a dodgy no-name unit two summers ago.
@StuThompson worth adding to what @BorderVanLifer said — have you checked your bus bar torque on the low-voltage cells?
@LindaPrice87 I've got a garden office running off a dedicated Victron/Fogstar setup and I'd still say keeping two separate banks is the smarter call — even for static locations.
@Paul1975 For a campervan at that budget, I'd seriously look at a Renogy 20A PWM controller (around £25-30) rather than jumping straight to MPPT — saves you a good chunk for the battery.
Last year I put together a 200Ah 12V bank using four Fogstar Drift 200Ah LiFePO4 cells with a Daly BMS.
@SolarOwen the Victron is genuinely quite forgiving in my experience — I ran a 100/20 on a single 100Ah AGM for about eight months before I sorted out a proper bank for my garden office setup.
@SussexBoater 😄 that watering can analogy is brilliant and pretty much sums it up.
My situation's slightly different — I've got a garden office setup rather than a van — but the principle's the...
@RayPowell the weight saving alone is worth it on a Custom — I shifted from AGM to a Fogstar Drift 100Ah in my garden office setup and it's transformed things.