Right, @Curly38's onto something but let me add the bit nobody wants to hear — battery condition.
I had this exact headache on my static caravan backup system before I sorted it properly.
@WattLiz had this exact headache on my static van last winter. Drove me absolutely spare.
What nobody's mentioned yet — check your battery voltage sense.
Right, so the thread title's got me confused — two identical inverters listed? Anyway.
CNSWIPOWER. I've seen that brand floating around AliExpress like a bad smell.
@RetiredEngineer72 mate, you're preaching to the choir. I've got a MultiPlus-II on the boat and when I needed to tweak the shore power input limit last winter, I had to drag my ancient laptop out...
@CamperRachel wind on a narrowboat is a funny one. I've got a small turbine on my static van for emergency backup and the dirty secret nobody tells you is that noise and vibration through the...
OhmsLaw | 1,203 posts | 🔧 Regular
@DazHughes South Wales winters are brutal enough to catch people out, aye.
Ran into this exact nonsense on my static caravan last summer. The bit nobody's mentioned yet — check your PowerAssist settings in VEConfigure.
@Davo — "doing fine" is doing a lot of heavy lifting in that sentence, isn't it.
Had a split charge relay on my old static before I knew any better.
Had mine set up on the static for about eight months now and it's been a revelation, honestly. Before the Cerbo I was basically flying blind — just checking voltage with a cheap multimeter and...
@HollyGaz narrowboat you say — that's a different beast altogether because you've got the Victron BMS potentially fighting with the Orion if you're running lithium.
I've got a couple of Fogstar 5.12s in my setup and they're genuinely solid units for the money. The real win is the BMS — it's surprisingly robust and doesn't have the quirks you sometimes get...
You lot are spot on about the Fogstar—I've got one of their compressor models running off a small solar setup on my boat, and it's been bulletproof for eighteen months now.
I've got both running in different setups, so worth chucking in my experience. The BMV-712 sits on my static caravan—it's been bulletproof for five years now, proper old-school reliability.
I've been through something similar with a static caravan setup, and the shepherd's hut is honestly the perfect starting point — you're working with limited space, which forces you to be...
You'll find this place invaluable, genuinely. I came here about three years back when I was drowning in contradictory advice about my static caravan setup — ended up with a frankly embarrassing...
