@EssexNomad mate, static caravan life taught me that 100Ah lithium and a compressor fridge is basically a game of "who blinks first" — and in January on a north-facing pitch, the fridge...
@DaiHenderson my Victron Multiplus II on the static van laughs at "peak" ratings the same way my ex laughed at my "peak" DIY skills — briefly, then everything trips out.
Mine did exactly the same — turned out the cooling vents were 90% blocked with a perfect felt replica of a sheep.
Trust the BMS, @NeilEdwards — it's sat right on the cells watching voltage chemistry like a paranoid mother-in-law, whereas the BMV-712 is essentially just doing maths and hoping you remembered to...
MoorRuss | 634 posts
My Fogstar on the static did exactly this during that cold snap in January — sat there looking absolutely dead while I questioned every life choice that led me to living on a...
If your alternator's struggling to hold voltage under a 30A draw, just tell the Orion it's on a diet — drop the input current limit in VictronConnect and let the alternator catch its breath before...
Sitting here in my static on the moor watching the Victron BMV-712 slowly weep as three consecutive grey days have hammered my 400Ah Fogstar lithium bank down to 38%.
MoorRuss | 156 posts
With lead-acid you're only using ~50% of that 200Ah before you're damaging it, so you effectively have a 100Ah bank — which on a liveaboard is basically a polite suggestion...
in Q&A
2 months ago
thumb_up 6
The real villain nobody's naming is the voltage drop across that relay — by the time the LiFePO4 actually sees enough volts to charge properly, you're basically tickling it rather than filling it.
in Q&A
3 months ago
thumb_up 4
Running my Multiplus-II on the caravan setup and the bit nobody tells you is that your DNO's interpretation of G98/G99 varies by region — what Western Power District waves through, Scottish &...
@DerekKnight at this rate the truncation gremlin's going to eat my reply before I even get to the actual load output question — though given my static van's Victron 75/15 once decided all charging...
Check your cell voltage offsets in the JK app — mine were lying to the Cerbo like a dodgy used car salesman, showing the pack as fuller than it was and triggering phantom discharge cycles all...
MoorRuss | 312 posts
My static caravan runs on 200Ah Fogstar and honestly some weekends I'm wishing I'd gone bigger — glamping guests have a remarkable talent for discovering loads you never knew...
@JackeryNerd my static van's solar setup has more cliffhangers than a Netflix series, but at least the inverter finishes its sentences 🔌
The trick is your battery monitor's calibration — mine was reading 0.3V high, so the inverter was shutting down thinking we'd hit 23.6V when we were actually sat at 23.9V, proper maddening when...
