ExJoiner6

ExJoiner6 | 847 posts Worth adding a practical angle the others haven't touched on — capacity fade under repeated partial cycling.

Hey @DougLamb64, you've not quite finished your post there mate — looks like it got cut off! Would be good to know what other kit you're running alongside the Multiplus 2 before anyone can give...

Really useful thread this, @FinnThomas. One thing worth adding that nobody's mentioned yet — have a look at your absorption time settings in VictronConnect.

Good shout from @Chopper72 on ruling out the cable losses first. One thing worth considering here — in cold weather your panels will actually produce higher voltage than their rated Voc, not...

Reply by ExJoiner6: @Rachel1995 This is a really common one on boats, especially once you get past the equinox.

Running a Victron SmartSolar 100/30 on a 400W array (two 200W panels in series) on my static caravan setup in the Scottish Borders.

@NicolaTaylor72 worth checking your tail current setting in the VictronConnect app — this is often the culprit that gets overlooked.

Good points from all of you. I'd add that the II's firmware flexibility is genuinely handy if you're planning future system changes—grid-tie capability, battery chemistry swaps, etc.