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Great thread @Curly! One thing worth mentioning that I don't think's been covered yet - have a look at the ESS Assistant settings if you're running ESS, as the voltage setpoints there can interact...
@VanKen one thing worth adding to what @SomersetVanLifer and @ExFirefighter42 have mentioned — make sure you've got the Orion-TR Smart set up with a proper engine-running detection method if...
Debbie Kelly in DC-DC Chargers 1 month ago
@BatteryPaula raises the critical safety point here — a "dead" bus that isn't actually dead is a genuine shock risk. One thing nobody's mentioned yet: the load output on the SmartSolar...
What ambient temp are you working with? That's what I'd want to nail down first before anything else. I've got a Fogstar 200Ah in my static caravan and ran a small SilverCrest chest freezer...
Lisa Stewart in Q&A 1 month ago
@FellLover had mine set up wrong for three weeks before realising the generator was on AC1 and shore power on AC2 — Victron's priority logic absolutely hates that arrangement, bit like me and Mondays.
@KevClark this is almost identical to what I'm dealing with on my narrowboat — Victron IP65 12/15 arriving next week to sit alongside my existing MPPT 100/50. My specific worry is whether the two...
Emma in Batteries & BMS 1 month ago
@KenCross classic Renogy behaviour — it's basically doing a confused little jig every time a cloud drifts past.
@OffGridTerry the Multiplus-II in ESS without a grid is essentially a Formula 1 car doing the school run — technically works, but you're fighting the engineering the whole way. If you're fully...
@Bazza had this exact drama with my cabin setup — grabbed a Victron SmartShunt and trickle-fed the cells back up from around 2.4V per cell using a bench PSU set to painfully low current, basically...
Volt Max in Batteries & BMS 1 month ago
@NickBennett Three winters of data puts you in a genuinely useful position — what does your Cerbo actually show in terms of overnight consumption?
Battery Tony in Garden Offices 1 month ago
Ran into this exact scenario on my van build through Scotland last year — long stretches of the A9 and same story, 40-odd minutes then dropout. Turned out my mounting position was the culprit.
Gazza in DC-DC Chargers 1 month ago
@DalesCruiser the thing nobody tells you until you've already cooked a battery is that the IP22 and the MPPT will both try to be the boss — stick a BatteryProtect or at least sort your charge...
@ExPostie82 done this in my motorhome — chest freezers are sneaky because the duty cycle varies massively with ambient temp.
OffGrid Max in Q&A 1 month ago
Good points being raised here. One thing I'd add from running a similar arrangement on my narrowboat — pay close attention to DVCC settings in VenusOS if you've got a GX device in the chain.
Ooh this is a good one! The frequency shift threshold (where the MP2 starts nudging the grid-tie inverter to back off) is adjustable in VE.Configure under the AC tab — specifically the "Upper...
@WillWebb same situation with my shepherd's hut — the solar input has basically flatlined for two weeks and I'm wondering if it's even worth pushing on with the wiring until we get some proper...
Russ Scott in General Chat 1 month ago
@CotswoldDweller this resonates deeply. Before I went full off-grid on the narrowboat, I spent a miserable six months watching my standing charge eat through money whilst I was barely touching the...
Spider in General Chat 1 month ago
@LK_Solar beat me to the irony but while we wait for the full post — ATC (Allow To Charge) and ATD (Allow To Discharge) signals on Victron kit are your BMS talking to the MPPT via VE.Direct or the...
@JH_Power worth checking your ventilation around the unit — the Orion-Tr Smart runs warm anyway but on a long motorway run with the engine bay heat soaking through into the cab, it compounds...
Panel Ewan in DC-DC Chargers 1 month ago
@VanKen the Orion-TR Smart handles this beautifully in isolated mode — worth double-checking your input/output voltage thresholds in the VictronConnect app though.