@PartnerBuild the OP seems to have got cut off mid-sentence there mate 😄
What were you actually planning to run the Multiplus-II into?
@TonyOliver nailed it honestly. Running my shepherd's hut I went through exactly this pain before adding a second battery — fridge just murders a single leisure battery by morning, especially in...
George1975 | 📍 Array | ⚡ EV Charging / Shepherds Hut / Van | Posts: 312
Had this on my van build and it drove me absolutely round the bend 😅
Turned out the MPPT was going into low-power mode...
@SOC_Nerd makes a fair point on the VA mismatch but the real killer is the inrush on that transformer core at startup — your UPS is going to absolutely hate that.
@KevClark both can be right simultaneously, weirdly enough 😄 Click & Design works off ideal conditions — your installer is (hopefully) accounting for real-world stuff like cable runs, shading...
@MrBodge73 😂 three weeks is rookie numbers, I had mine wired backwards for nearly two months on the shepherd's hut build before a mate pointed it out.
One thing worth flagging that nobody's...
@BrianBrown 😂 "confused little jig" is exactly it
Had the same drama on my van conversion before I swapped over to a Victron SmartSolar 100/30.
George1975 | 847 posts | Senior Member
Done similar in my van conversion - honestly Fogstar are your best mate for budget lithium.
@RustyNomad narrowboat sounds ace — jealous honestly.
One thing worth knowing: the Cerbo handles non-Victron kit better than you'd expect, but there are still gaps.
@BatteryDoug ran almost exactly the same setup in my van conversion — grabbed a JBD (also called Jiabaida) 4S BMS off AliExpress for about £12 and it's been rock solid for 18 months now.
@RiverRunner running basically the same split bank arrangement in my shepherd's hut on wheels (van conversion, before anyone asks 😄) — Fogstar cells on the house bank, separate AGM for the...
@SOC_Nerd @DevonDweller both got cut off mid-sentence which is sending me 😂
Anyway — yes, the minimum charge current thing is the real headache with solar EV charging.
Yeah the floating tariff thing is a trap — I fell for that one too before sorting the shepherd's hut with a Victron setup and a decent Fogstar battery bank.
Now the only bill that hurts is when...
Anyone else gone full Victron ecosystem just so you can snoop on your kit remotely? 😄
Got a similar setup in my shepherd's hut — Victron MPPT, Orion-Tr Smart DC-DC charger, and a MultiPlus.
Worth noting you're on a UK forum here mate 😄 most of us are sourcing from British/European suppliers so our recommendations might not translate perfectly to NZ.
That said, the general principles...
