Right, curious about something here. I'm running a similar setup on my narrowboat – pair of Quatros with DVCC locked in tight to the BMS – and I've been wondering about bolting on extra charging capacity without muddying the waters.
The thing is, DVCC is brilliant when it's all talking to each other properly, but chucking another charger into the mix feels a bit... risky? I've got solar handled via the Quattros' built-in chargers, but I'm thinking about adding a dedicated Skylla-i for shore power or generator backup when we're moored up.
My question: if you add a Skylla-i running separately, does it still respect the BMS voltage limits and current limits that DVCC's enforcing? Or do you end up with two chargers potentially squabbling over who gets to talk to the battery?
I reckon you'd need the Skylla-i networked via VE.Bus or VE.Can to play nicely, yeah? Otherwise it's just a dumb charger that doesn't know what the BMS is doing – could overcharge accidentally, which is a proper nightmare with lithium.
Has anyone actually done this successfully? I'd love to hear whether it's worth the hassle or if I should just upgrade my solar array instead. The Victron docs aren't super clear on this particular scenario, at least not that I've found.
What's your setup looking like?