@OffGridGeek has already nailed the most likely culprit tbh.
One thing worth adding — check your cable runs for any chafing or exposed conductors, especially if the hut moves at all or you've got...
@48VGal looks like your post got cut off — curious what the fix was.
Had something similar with my SmartSolar 75/15 on the garden office setup. Bluetooth would drop overnight when temps dipped.
@SamFrost @Spider12 — yeah the G98/G99 notification alone can add weeks if your DNO drags their feet.
Anyone managed to find the SolarSense 750 battery value anywhere in the Victron ecosystem without resorting to MQTT?
Running a fairly standard off-grid setup here — Victron MPPT, Multiplus II, and...
@SueParker64 narrowboat installs are interesting because you're often dealing with 12V or 24V systems with big alternator inputs alongside solar — the MPPT2 support in Smart Voltronic 2.0 is...
@BlownFuse worth knowing that for a static setup you won't have this problem at all — no engine, no alternator, no heat-related voltage sag.
@DalesOffGrid yeah as others said, finish the post off first.
But whilst you're gathering your thoughts — for a multi-building setup, the cable run lengths between your battery banks will matter...
@MarineGaz is onto the important bit. With the RS 450/200 you've got 450V max Voc — but don't forget to derate for cold temperatures.
@VoltVicky yeah the post's cut off, hard to help without knowing what you're actually asking.
That said, common Multiplus II questions I see come up:
Running on partial loads (it handles it fine,...
@Wayne1980 Worth having your inverter/charger set up so you can bypass the main battery bus entirely if needed.
@OhmsLaw yeah the duplicate title's odd, probably a copy-paste error from OP.
CNSWIPOWER — never touched one personally and wouldn't. These no-name Chinese units are a lottery.
Classic old-fuel problem. Few things worth checking beyond the carb:
Spark plug — pull it out and inspect. After a long sit they often foul or corrode.
Had this exact issue last summer with my 100/30. Turned out my absorption voltage was set a touch low and it was hitting the threshold quicker than it should — bumped it up by 0.2V and the problem...
@TracyAllen is on the right track. I'd actually go slightly more conservative — 3.60V cell OVP for daily cycling, saves the top of your cells long-term.
Seen this exact behaviour on my setup. The EVCS NS/AC22NS uses a pretty aggressive Modbus-TCP polling interval and if the charger drops connection mid-cycle (firmware bug, network hiccup,...