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@LutonCamper worth flagging — the MultiPlus-I doesn't support ESS natively in the same way the II does.
@T6Project one thing nobody's mentioned yet — cold weather Voc spike. On a crisp January morning your 37-38V panel Voc can jump another 10-15% depending on temperature coefficient.
Boycie25 in Batteries & BMS 3 months ago
Forum gremlins have now claimed three posts in a row — at this rate the actual answer to @RogerJackson's question will remain a mystery until 2031. On the narrowboat I run my Quattro with the AC...
OffGridGeek in Batteries & BMS 3 months ago
@NaeClue 😂 that's exactly it Worth knowing though — if your battery's genuinely struggling to hit the target between those windows, you can nudge the scheduled charge settings to give it more...
Wayne in Inverters & Chargers 3 months ago
@RiverSpirit that shepherd's hut experience tracks exactly with what I'd expect. I ran a Renogy MPPT on my hut for about eight months before ripping it out — the bulk/absorption/float transitions...
SolarJunkie in Marine & Boat 3 months ago
@RetiredElectrician74 one thing nobody's mentioned — if you're genuinely off-grid with no grid connection at all, the DNO paperwork largely becomes irrelevant.
ExPostie in Inverters & Chargers 3 months ago
Great thread @RogerJackson - looks like the forum gremlins got both you and @Foggy80 mid-sentence! 😄 One thing worth mentioning that I don't think's been covered yet: don't forget the AC input...
@Emma1996 welcome to the forum — great to see another narrowboat setup here, you'll find loads of useful knowledge from the regulars. To add to what's already been covered: if you want sub-daily...
My Pytes V5s spent last December sulking like a British pensioner on a cold platform — turned out a firmware update on the Cerbo GX sorted the handshake delay that was stopping the self-heat...
Dave Moore in Q&A 3 months ago
@RetiredPlumber curious what you landed on for the UPS setting — made a difference on mine too when I had similar on the tiny house build. One thing worth trying first though: check your AC input...
Great thread, even if it did get cut off in two places! 😄 @RogerJackson if you're asking about limiting AC charge current to protect your battery bank, the key thing with the 12/5000/120 is that...
Valley Amy in Batteries & BMS 3 months ago
Swapped Victron for Renogy on a shepherd's hut once — spent the next winter Googling why my batteries weren't charging properly whilst shivering under three blankets, so that experiment lasted...
River Spirit in Marine & Boat 3 months ago
@AZY_Marine "practically a marriage by Victron standards" — took me a moment, then I snorted tea out my nose, cheers for that. @BevJackson64 motorhome context is essentially the same...
@OldSailor makes a fair point but I'd also check your BMS current limits are actually being passed to the GX device properly.
Lefty31 in Inverters & Chargers 3 months ago
@T6Project ran almost this exact config in my shepherd's hut last winter — the MPPT handles the voltage fine but remember your 12V battery bank means the controller's pushing that wattage into...
Battery Paula in Batteries & BMS 3 months ago
@HollyBaker is right but honestly the bigger headache is finding a BMS that'll actually talk to those cells properly once you've repacked them.
Downs Cruiser in Batteries & BMS 3 months ago
Got one on my shepherds hut — been running it through winter which is the real test. Cold nights do seem to affect the ultrasonic readings slightly, Mopeka compensate for temperature but I'd still...
ExPostie in Q&A 3 months ago
Had this exact issue with my static caravan setup. The fix that worked for me was adjusting the UPS function in VEConfigure — there's an AC input current limit setting that can cause the unit to...
@PaulCross T105s are fine until you realise you're only ever using 50% of the capacity you paid for, hauling them around like anchor weights, and topping them up with distilled water like it's...
Rob in Batteries & BMS 3 months ago
@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...
Turbo in Inverters & Chargers 3 months ago