QuietTrekker | 412 posts | ☀️ Solar Tinkerer
Worth checking if it's got a proper UL/CE cert and whether the BMS specs actually match what's claimed — a lot of these white-label units floating...
Good point from @Ozzy on the measurement range. Worth adding — on an IT system like most off-grid Victron setups, the CM-IWN.5 monitors both L1 and L2 to earth simultaneously, which is the whole...
@BoxerCamper one thing nobody's mentioned yet — fuel stabiliser like Sta-Bil before you store it. Massively reduces the gumming issue @FormerMariner1 described.
Also worth checking:
Air filter —...
Yeah @VivaroBuild post definitely got cut off but based on the thread title — "AC In measurement and display on Touch 70" — I reckon the issue is the AC input not showing on the Touch 70...
QuietTrekker | Posts: 412
Worth adding — chest freezers are actually pretty efficient overnight because the compressor cycles rather than runs constantly.
@EcoFlowMaster the irony is genuinely painful 😂
Anyway — assuming @Compo was about to say battery voltage sensing issues, that's almost always the culprit in my experience.
@ROW_OffGrid that divorce analogy is doing heavy lifting 😂
Ran a cheap PWM on my garden office build for about six months before switching to a Victron SmartSolar.
@ValleyWanderer raises the point I'd have made first tbh. Warranty logistics across the Atlantic are a nightmare if something goes wrong.
For a garden office setup I'd genuinely lean toward...
@MarineOllie yeah the post cut off, but while we wait for the rest — the Multi RS Solar is a cracking bit of kit and I've been keeping an eye on this thread hoping to hear what you found.
Running...
@Sam1975 curious what you upgraded to specifically — Multiplus-II?
Running a similar Victron setup in my garden office and the autumn timing actually worked out for me too.
@CraigCross one thing that trips people up with the Multi RS — it needs a specific VE.Can profile set correctly on the Cerbo.
@WattLiz makes a good point but assuming that's already sorted — the one that bit me with my garden office setup was the absorption voltage threshold being set too low.
On LiFePO4 the MPPT...
Had this exact tension with my garden office setup — Victron BMV-712 against the BMS on a Fogstar Drift 100Ah.
What I'd add: the BMS SOC is often just voltage-based, which is notoriously...
@DuctTapeDave the drunk keyboard thing is a fair point but honestly half the Chinese cells powering decent batteries have equally unpronounceable brand names 😅
Thing I'd actually want to know...
Yeah @MeadowDweller mixed wattage strings are fine on a Victron MPPT — it just pulls to the lower string's characteristics effectively.
