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Just finished wiring up a Multiplus II 48/3000 with two Pylontech US3000C batteries (about 7kWh usable) and I'm second-guessing my charge/discharge limits in VEConfigure.
Wonky Warden in Inverters & Chargers 4 months ago thumb_up 2
@NicolaTaylor72 just to add something nobody's covered yet — have you checked what your battery temp is doing?
Slim13 in Solar Panels & Controllers 4 months ago thumb_up 4
PartnerConvert | 📍 Yorkshire Dales | ⚡ Off-grid since 2019 @CoastalCruiser Ah, commiserations — I saw a few grumbles about v3.40 over on the Victron Community forum too.
Partner Convert in General Chat 4 months ago thumb_up 3
@OllieThompson73 the Fogstar Drifts have a built-in BMS already — that's literally the point of buying them over bare cells.
Vito Project in Motorhome & Campervan 4 months ago thumb_up 8
@Tommo had this on my emergency backup setup last winter — turned out to be a Bluetooth pairing ghost.
Border OffGrid in Solar Panels & Controllers 4 months ago thumb_up 6
Good to see a new face asking sensible questions rather than just panicking and sending it back — @SilverCaptain and @DefenderConvert have covered the technical side well.
Anglia OffGrid in DC-DC Chargers 4 months ago thumb_up 2
Hey @Wez1961, nice setup! I've got something similar running my 4x3m office at the bottom of the garden.
Paul Jackson in Off-Grid Cabins 4 months ago
So I'm finally pulling the trigger on a proper solar setup for my campervan conversion. Running two 100W panels wired in series giving me roughly 40-44V open circuit, feeding into a 100Ah lithium...
Steve Burns in Solar Panels & Controllers 4 months ago thumb_up 1
PeakNomad | 312 posts | 🚐 Van Dweller Had this in my van build — turned out my battery temperature sensor had fallen off the cell and was reading ambient, so the Multiplus thought the pack was...
@Chris1997 makes a solid point on MPPT — but even with a decent Victron SmartSolar pulling every last watt, 200W genuinely struggles on overcast days.
Thistle Tel in Motorhome & Campervan 4 months ago thumb_up 4
@ExFirefighter good systematic approach. One thing I'd add from my garden office setup — check whether the dodgy readings correlate with Bluetooth interference.
Trigger in Solar Panels & Controllers 4 months ago thumb_up 8
ThistlePaul | 203 posts Great question @MoorHamish — at 24V/200Ah you've got a decent buffer to work with. The key variable people underestimate is ambient temperature.
Thistle Paul in Q&A 4 months ago thumb_up 2
@ExFarmer21 had the exact same nonsense in my van build. The fix that sorted it for me was going into the MPPT settings and manually configuring a proper lithium charge profile rather than letting...
Ray Powell in General Chat 4 months ago thumb_up 7
Cheers for flagging this @ExTrucker73 — fascinating to see how different the market is across the pond!
Dave in Batteries & BMS 4 months ago thumb_up 9
Great thread. @SimonThompson which Victron unit did you end up going with? I've been eyeing up the Alternator to Battery charger rather than a standalone regulator — curious how you've found it in...
Max Young in Marine & Boat 4 months ago thumb_up 6
Foggy91 | 847 posts @MarineTerry the bit that finally made it click for me was thinking about wire runs rather than the batteries themselves.
Foggy91 in General Chat 4 months ago thumb_up 1
@MarineClare same issue with my tiny house setup last winter. Below about 3°C I was seeing the same sag, especially under any decent load — kettle, inverter spooling up, that sort of thing. What...
Rocky Tinker in Batteries & BMS 4 months ago thumb_up 1
Russ1992 | 847 posts @Liam1998 I've been down this exact road mate. The real issue with those budget bars isn't necessarily the bar itself — it's the tin plating thickness.
Russ in General Chat 4 months ago
Picked up a pair of 12-way bus bars off Amazon for about £8 a few weeks back to tidy up my van build.
Liam in General Chat 4 months ago thumb_up 2
Ugh, this thread is a mess of truncated posts 😅 @TorJake assuming you've switched to lithium — check your battery capacity settings in VEConfigure.
Bay Lisa in Batteries & BMS 4 months ago thumb_up 7