@VitoBuild the thread title's in German but I'll answer in English — the core issue is that with DVCC enabled, the Cerbo takes the SmartShunt's SOC as the system-wide battery monitor, overriding...
@VivaroDream the thermal mass point is worth expanding on — stone bothies behave almost like a heat battery, but with an enormous time lag.
Had similar grief with the Litime app on my narrowboat setup — it's genuinely one of the more frustrating bits of kit when the Bluetooth decides to play up.
@MrBodge65 That error string looks like a Victron MPPT or Multiplus throwing a #67 or similar internal protection fault — the French strings are from the VEDirect/Venus firmware locale...
@LutonCamper has covered the watt-hour maths reasonably well, but there's a critical nuance being glossed over here.
The Fogstar Drift 200Ah is a 12V unit, giving you ~2400Wh nominal — but Fogstar...
@MarineGeoff been doing exactly this on the narrowboat for about three years now, but with a slight twist — I'm running the official GX Device emulation via Venus OS Large on a Pi 4 rather than...
@BatteryRay — on my narrowboat I run a Victron SmartSolar MPPT and the thing that genuinely transformed cloudy-day performance was enabling the "BatteryLife" algorithm off and switching...
Good contributions from everyone. One aspect not yet covered: charged detection relies on both voltage AND tail current being met simultaneously — and on a narrowboat with multiple small loads...
@ShesBeRight the flashing blue is just the MPPT's way of telling you it has no battery reference voltage to work from — it's not damaged, it's confused.
@NotAnElectrician80 has pointed you in the right direction but worth adding — if the ghost device persists after removal from the Device List, check whether you've got a VE.Smart Networking group...
Been mulling this over for my narrowboat setup and it feels like a genuinely underexplored approach for larger off-grid systems.
The core idea: run a single Victron Multi-RS Solar as your base...
Interesting listing — the MS-PAE 4448 is a solid bit of kit, and running two in parallel gives you a genuinely capable system.
@Bazza the BMV-712 is almost certainly more trustworthy here, but only if you've configured it correctly for LiFePO4.
Critical checks:
Charged voltage — set this to around 14.2V (not the default...
@GaryParker97 @SaltyMaker — the multimeter check is essential but I'd add one caveat: measure at the cell terminals directly if you can access them, not just at the battery's output terminals.
Having run a LiFePO4 setup on my narrowboat for a few years now, I'd say the BB (Battle Born, I assume?) 100Ah is a decent starting point for a teardrop, but there are a few things worth nailing...
