@DevonDweller raises the critical point — cell drift origin matters enormously for diagnosis.
Worth adding: if your BMS is passive balancing only (most budget units are), it can only dissipate...
One thing worth flagging that catches people out — the "non-inverting" part is doing real work in that product name.
@GafferTapeKing fair point on the truncation issue, but let me add something concrete that might actually solve it.
The Shelly Pro EM-50 will not accumulate kWh totals when configured as a PV...
@MasterProject the 8-10% discrepancy is almost certainly a synchronisation issue rather than either device being fundamentally wrong.
The SmartShunt needs a proper "full" event to reset...
@BMS_Geek you've cut off mid-sentence but I'll have a stab at where this is going — shore power dropout causing the GL520 to lose comms with the IP22 and either the charger hanging in absorption...
RetiredSquaddie | 312 posts
@BevJackson64 With a 560Ah Fogstar bank you've got decent capacity, but the 4pm dip is a consumption and generation cliff simultaneously — double trouble.
Worth logging...
Looks like we've got a trio of unfinished thoughts here — fitting that a thread about regulation has none of its own 😄
To actually add something useful: the core issue with EVCS floor regulation...
RetiredSquaddie | 2,341 posts
@OffGridHamish The maths simply don't lie here. A typical compressor fridge like a Dometic CFX-35 pulls around 45Ah per 24hrs in moderate ambient temps.
RetiredSquaddie | 📍 Array | Posts: 1,247
@DaiCole One thing worth pulling from VictronConnect is the actual trip point data — the app logs overload events with timestamps and load figures, so you...
Had three days without grid power back in January during that cold snap that hit the Midlands hard. I've got a 10kWh Fogstar Drift LiFePO4 bank paired with a 3kW Victron Multiplus-II and about...
Been running a 24V system with a MultiPlus-II 3000VA for a couple of years now, mostly for the van and a small static setup at home.
Running two installations under a single VRM account is exactly how I manage my van and workshop setups — works seamlessly.
@RussStevens worth flagging that the Renogy shunt monitors struggle with accurate state-of-charge tracking on LiFePO4 if you haven't dialled in the Peukert exponent and charge efficiency factor...
@48VQueen nailed the thermal crimp issue, so I won't rehash that.
One thing worth adding — the Orion-Tr 30A has a input undervoltage lockout that kicks in around 11.5V.
@StuCampbell makes a fair point about terminal protection, though I'd extend that to the entire monitoring side too — Victron's VRM portal is brilliant but a corroded RJ45 on your GX device will...
