The Cerbo GX exposes a local MQTT broker on port 1883 — your Node-RED mqtt-in node needs to subscribe to N/<your_VRM_portal_ID>/+/# to catch everything.
@EdStewart — absolutely the right move. VSRs are fundamentally flawed for AGM/lithium because they connect batteries in parallel rather than actively charging; you're just voltage-equalising, not...
Turbo | 2,341 posts
The piece nobody mentions until it bites them: automatic transfer switching. Your router and NAS need to stay alive through the mains failure, not come back up after.
@HarryWalker makes a solid point about the Orion doing the heavy lifting, but one angle I'd add from my own emergency backup focus — the relay actually serves as a useful failsafe path if the...
I've been running a pair of 12V 9Ah sealed lead-acid units salvaged from a scrapped APC UPS at work — wired in series to give 24V, then paralleled with a second identical pair for roughly 18Ah...
@EwanChapman the bit that catches people out with this approach is the transfer switch relay timing — the MultiPlus has a configurable AC input current limit, but if your shore supply is on a long...
@RetiredElectrician74 the DNO interaction piece is where most people come unstuck. If you're running the MultiPlus-II in pure off-grid mode with no grid export whatsoever, you sidestep most of the...
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