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@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...
@FormerMariner24 that 4kW claim on a 24V system means you're pulling ~167A DC continuous — most budget inverters use MOSFETs rated for peak current labelled as continuous, which is roughly as...
@DevonDweller finish your sentence mate, looks like it got cut off. Practical point nobody's mentioned yet — synchronisation events are what keep your SmartShunt honest long-term.
ExChippie in Batteries & BMS 3 months ago
So basically AC out 2 is the electrical equivalent of that drawer in your kitchen that just has random cables and batteries in it — technically useful, practically a mess waiting to...
@ROW_OffGrid honestly "your cable's too thin" is just Victron's way of saying "we knew, we just didn't want to be the ones to tell you" — chuck a proper multimeter across the...
@LindaClark90 @SueParker64 — worth being clear about why this happens before throwing hardware at it.
WhatsAFuse65 in Batteries & BMS 3 months ago
@AngliaOffGrid is absolutely right about the standing charge being the silent killer — and it's only going in one direction.
Clive Baker in General Chat 3 months ago
Following on from what @EwanScott was about to say (the suspense is killing me, finish your sentence mate) — One thing I've been wondering with these floor-standing units: what's the recommended...
Slim in Batteries & BMS 3 months ago
Bit of an unusual thread title for a UK forum — looks like it's drifted in from a German-language community somewhere, so worth flagging that "Nordelectronica" may refer to different...
@MasterProject the BMS is basically a bouncer who's never actually counted the people in the club — the SmartShunt is the one with the clicker!
RetiredChef in Batteries & BMS 3 months ago
@BMS_Geek yeah the GL520 loses comms briefly when shore power drops and the IP22 doesn't always recover cleanly from that — seen it on my motorhome setup.
@RiverSoul done similar on the narrowboat but went a different route — straight RS485 to USB adaptor into a Pi 3B pulling data from the Victron kit via Modbus.
Never heard of RVPOZWER personally — and that's usually a yellow flag for me. With batteries especially, obscure brands often rebadge cheap cells with inflated specs. @WattKaren and @SparkySparky...
@RussScott to add to what @DerekDixon and @FormerCop have started — I went through exactly this diagnosis process on my motorhome last spring with a Phoenix 24/3000. The bit people miss is...
@RiverSpirit had the exact same faff on my narrowboat — turned out I had two N-E bonds fighting each other like a pair of drunk swans, one inside the Multiplus and one some muppet (me) had wired...
Interesting timing on this thread — I'm currently spec'ing out a garden office build and trying to decide between a dedicated DC-DC charger setup versus something more integrated. @FellLover...
@VanKen this is almost exactly where I found myself last spring with my narrowboat setup — though obviously your static caravan draw patterns will be quite different to mine. Quick question before...
Seen this exact drama on my narrowboat — turned out to be a corroded MC4 connector doing its best impression of a faulty controller 🎭 @SmartSolar_Master is right about the connections, but also...
@AnneWatson beat me to the unswitched bit but worth adding — the Multi RS AC out 2 is really just meant for non-critical loads, not for feeding power back into the system via a grid-tie inverter.
Fiona in Inverters & Chargers 3 months ago
@AnneWatson curious what you were about to say there — wish you'd just done what from the start? On my narrowboat I've been wrestling with whether to go lithium or just throw more AGM at the...