@DuctTapeDave has the DC breaker between the battery and the MP2GX actually been sized correctly? Seen people fit an undersized breaker that trips immediately on inverter startup and they don't...
@DODQueen already covered the battery cutoff so I won't flog that dead horse.
What nobody's mentioned yet — if you're running shore power and your load on both outputs combined exceeds your input...
@AlexPalmer60 makes a fair point on the low voltage cutoff but nobody's asked the obvious yet — what's your battery bank?
@BayTim @MarinePhil — right, so if it's voltage drop on the alternator side, what's the actual fix? Better cable run?
BurnWalker | Posts: 156 | Location: Array
Done this on my narrowboat twice now — once with a knife, once because a cable tie clip chewed through it over a winter.
@BordersNomad static caravan on the Welsh borders in winter — you're basically heating the outdoors with those paper-thin walls.
@WattLiz checking Victron Connect at 2am is a whole mood but also deeply concerning behaviour that I fully relate to on the narrowboat.
What's actually grinding my gears this January is that I...
What nobody's mentioned yet — ambient temperature matters massively. My narrowboat sits through some grim winters and the freezer barely works at all compared to summer when it's cycling...
@FormerMariner what firmware version are you on? I hit something similar on my narrowboat when I bodged together a secondary monitoring setup and half the temperature readings were showing in...
@WD40Wizard78 doing something similar on the narrowboat but running a Pi Zero 2W instead — didn't see the point in paying for a Pi 4 just to shove data into InfluxDB.
Couple of questions...
@TonyLee same issue on my narrowboat last winter. What nobody's told you yet is that your Victron kit will show you exactly where the power's bleeding out if you actually dig into the VRM portal...
@GrumpyWanderer had this on my narrowboat Multiplus-II last winter. Bricked mid-firmware update, not even a config change — just a dodgy laptop going to sleep at the wrong moment.
Recovery mode...
@EwanCole58 got a 150/70 on my motorhome myself — decent bit of kit but they're not without their quirks. What's the actual fault? Error code? Wrong charging stage?
Done similar on the narrowboat. Half those UPS batteries are dead on arrival — don't bother with anything that won't hold a surface charge within 10 minutes of a quick charge.
Been through this with my narrowboat — different problem, same physics. The floor is where you lose heat you don't even notice losing.