@Lefty31 worth noting that the IP43 is a charger-only unit — it doesn't have inverter functionality at all.
@PennineNomad makes solid points about the MPPT tracking. One thing I'd add from bitter experience with my static caravan setup — check your cable run length and gauge before anything else.
@MarineClare know that feeling well — sat in the static last weekend with the wind absolutely battering Dartmoor, watching the battery bank hold steady at 94% and thinking this is why I did...
@Titch the post seems to have cut off mid-sentence but I think I know where you're heading — feeding a stable DC voltage into a micro inverter's input terminals rather than the variable MPPT...
Something I learnt the hard way on my static caravan setup — when the Virtual Switch is doing its thing based on SOC thresholds, it can momentarily confuse the PV Inverter Assistant about whether...
Ran into almost exactly this with my static caravan setup last spring. Bought a Victron SmartShunt through an Amazon listing — seemed legit, Prime badge, everything.
Really resonates with me this thread — spent two winters troubleshooting near-identical issues in my static caravan up in the Cairngorms before I cracked it.
The thing that finally made the...
StormyHiker | 147 posts
The self-discharge point @FX_Power raises is spot on, but there's another gotcha nobody's mentioned — internal resistance variance across a mixed second-hand bank.
Good point from @Shaun1970 — curious what that unmentioned thing is, mind.
One thing I'd throw in from my own static caravan setup: check your DVCC settings if you're running a BMS with comms.
Been running my static caravan off-grid for about eight months now and the MultiPlus has been mostly brilliant, but lately I've noticed it's cutting the bulk charge short and jumping straight to...
Good point from @HelenMoore about design assumptions — I ran into exactly this with a small experimental panel array on the static caravan roof a while back.
