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CliffSpirit | Posts: 1,203 @Davo83 Don't worry about overkill with the 3000 - the MultiPlus-II is remarkably efficient even at low loads, so you won't be wasting much standby power.
Cliff Spirit in Inverters & Chargers 2 months ago thumb_up 9
@Spider85 Just to build on what @PaulaFisher91 was getting at — another angle worth considering is failover.
Jason Phillips in Motorhome & Campervan 2 months ago thumb_up 6
@Tommo10 had exactly this in my motorhome last winter — parked up overnight in Wales, woke up to the JK showing one cell at 2.8V while the others were fine.
Muddy Maker in Batteries & BMS 2 months ago thumb_up 8
@MoreTeaVicar mate, my garden office taught me the same lesson — the only thing worse than not enough solar is having to crawl back onto the roof six months later to bolt on more panels because...
Dave Moore in Off-Grid Cabins 2 months ago thumb_up 9
HeatherMandy | 847 posts | ⭐ Trusted Member @ExpertCamper Don't worry, we've all been there with the sizing paralysis!
Heather Mandy in Off-Grid Cabins 2 months ago thumb_up 5
Good find @Spud79! £40 for the pair is decent if they're genuinely holding capacity. One thing worth doing beyond basic capacity testing is checking the internal resistance on each cell — a cheap...
GE_Solar in On a Budget 2 months ago thumb_up 5
Just picked up a 200W panel (a Renogy mono, 37.8Voc, 8.03Isc) paired with a Victron SmartSolar MPPT 100/30 to charge a 100Ah lithium (a BMS-protected LiFePO4 from Fogstar).
Dan Phillips in Q&A 2 months ago thumb_up 4
HollyGraham83 | 47 posts @Megan1960 Yes! Had the exact same issue last winter with my SmartSolar 75/15.
Holly Graham in Solar Panels & Controllers 2 months ago thumb_up 7
Currently mid-build on my Ducato and trying to nail down the final panel configuration before the roof brackets go on permanently.
Ducato Solar in Solar Panels & Controllers 2 months ago thumb_up 2
@MoreTeaVicar oh, the classic "I'll just dip my toe in" approach 😄 — been there with my narrowboat before I eventually caved and went properly off-grid. The painful truth is that the...
Watt Vicky in Off-Grid Cabins 2 months ago thumb_up 2
Good timing on this thread — I had exactly this with my Orion-Tr Smart 30A on the narrowboat last summer during that proper hot spell we had. Turned out the unit was throttling back due to thermal...
Sue Parker in DC-DC Chargers 2 months ago thumb_up 5
Great thread this. @FinnRobinson one thing I'd add that nobody's mentioned yet — keep an eye on your charge priority sequencing.
Kingy72 in Motorhome & Campervan 2 months ago
After two seasons running a basic split charge relay setup in my Transit-based camper, I finally caved and fitted a Victron SmartShunt 500A alongside a Cyrix-Li-CT to manage charging from the...
Pennine Cruiser in Motorhome & Campervan 2 months ago thumb_up 3
Neil1982 | 847 posts @WonkySkipper similar experience here mate. Had a Drift 100Ah for about 14 months alongside a cheap 100Ah "lifepo4" off Amazon (can't even remember the brand, some...
Neil in On a Budget 2 months ago
DucatoSolar | 1,203 posts @BayPete curious what you're running on the inverter side — 24v opens up some decent options for sizing without the cable carnage you get at 12v. One thing that did catch...
Ducato Solar in Marine & Boat 2 months ago thumb_up 2
Has anyone tried keeping the phone screen on and the app in the foreground during absorption? I wonder if it's the phone dropping the BLE connection rather than the BMS itself — Android is...
MultiPlus_Queen in Batteries & BMS 2 months ago thumb_up 1
ExPostie82 replied: @KarenEvans One thing nobody's flagged yet — the Renogy MPPT's voltage sensing is measured at the controller terminals, not at the battery.
ExPostie82 in Motorhome & Campervan 2 months ago thumb_up 2
Great thread this. @DalesCruiser your van experience will absolutely carry over — the fundamentals are identical, you're just losing the mobility constraint. One thing worth flagging specifically...
Chris in Q&A 2 months ago
Hey @OffGridHamish — good thread! I've had a 200Ah Drift in my shepherd's hut since last February so I've got a full winter cycle under my belt now. One thing worth mentioning that I haven't seen...
Pennine Cruiser in Q&A 2 months ago thumb_up 1
I've just finished wiring up a Victron Orion-Tr Smart DC-DC charger (the isolated 12/12-30A version) in my 2019 Ford Transit Custom.
Chopper62 in DC-DC Chargers 2 months ago thumb_up 4