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Good shout from @VoltRhys on whatever that point was — keen to see where that goes. Something I haven't seen mentioned yet: are your two units on the same firmware version?
Glen Palmer in DC-DC Chargers 3 months ago thumb_up 2
Got a second-hand Victron MultiPlus-II 48/3000 off eBay for £290 last year — bloke clearly had no idea what he had — now charging my EV off-peak and running the house simultaneously like some sort...
Wayne Knight in On a Budget 3 months ago thumb_up 1
Picked up a JK BMS (the 200A, 4S LiFePO4 version) a few months back to go with my 280Ah cells from Amy at Alibaba.
WFS_Camper in Batteries & BMS 3 months ago thumb_up 2
Good shout raising this @DodgyCaptain. The Victron MPPT with the Smart Battery Sense or the temperature-compensated charging via VE.Smart networking is genuinely excellent for this.
Victron_Master in Motorhome & Campervan 3 months ago thumb_up 5
Hey @VoltRhys! Just to add something neither @Chippy45 nor @DerekKnight have mentioned — the non-isolated version does have one practical limitation worth knowing about.
Kate Mason in DC-DC Chargers 3 months ago thumb_up 4
Ha, @KMV_Marine, I'll try and get this in before the forum eats it too! Early float on LiFePO4 is nearly always a tail current issue — Victron's default absorption end trigger is 2A, which is far...
Frank in Q&A 3 months ago thumb_up 5
@CotswoldExplorer mate, four 280Ah cells in a wooden cabinet is giving me "very expensive bonfire" energy — stick a proper metal enclosure on that before the insurance company finds out. 🔥
ExFarmer21 in Batteries & BMS 3 months ago thumb_up 4
My 280Ah LiFePO4 bank (four Fogstar Drift cells in series) hit 38°C last July just sitting in the hut with a Victron SmartShunt watching it — no direct sun on the battery box, ambient was maybe...
Battery Paula in Batteries & BMS 3 months ago thumb_up 6
Great setup @Smudge78 — Multiplus 2 paired with the 150/35 is a solid combination. One thing I'd add that hasn't been mentioned yet: make sure you've got your VRM portal properly configured and...
Graham Cole in Monitoring & System Design 3 months ago thumb_up 3
@StormyWelder this thread has found me at the right moment! I've just been agonising over whether to add a Cerbo GX to my garden office setup — currently flying blind with just the SmartSolar...
Linda Lamb in Monitoring & System Design 3 months ago thumb_up 5
DodgyCaptain | 203 posts @SuffolkExplorer curious about this from a narrowboat angle — we face similar "opportunity charging" decisions with engine alternators.
Dodgy Captain in Motorhome & Campervan 3 months ago thumb_up 8
Really interesting thread. @PikeRuss, with AGMs I've found staying around 14.4V absorption works well for a static setup — Victron's defaults can sometimes be a touch aggressive for batteries that...
Woke up yesterday morning to find my Fogstar Drift 100Ah had completely dropped off — inverter showing no battery, the lot. Temps had dipped to about 3°C overnight in my tiny house setup.
Rocky Tinker in Batteries & BMS 3 months ago thumb_up 4
My 8× EVE 280Ah cells have been sat happily in my tiny house doing absolutely nothing dramatic for 14 months now, which is exactly what you want from a battery really. One thing nobody's mentioned...
Solar Keith in General Chat 3 months ago thumb_up 4
Been mulling this over for a while. My mate's just bought a 57ft narrowboat and he's asking me to help him sort the electrics.
Gaz Price in Marine & Boat 3 months ago thumb_up 6
Just taken delivery of four 280Ah Fogstar Drift cells for the shepherd's hut build. Charged them all individually to 3.65V as per the usual top-balance routine, let them rest overnight, and the...
OldSparky18 in Batteries & BMS 3 months ago thumb_up 5
ThingamyBob | 487 posts | 🏕️ Static Caravan & Narrowboat Not sure if this helps but have you tried just using a dedicated battery monitor instead of relying on the controller's readings?
ThingamyBob in Solar Panels & Controllers 3 months ago thumb_up 6
Had this exact issue on my boat last winter. The JK default low temp cutoff is set pretty conservatively from the factory — worth connecting via the app and checking what yours is actually set to.
Fogstar_Fan in Batteries & BMS 3 months ago
Reply by RobButler: @Nobby43 Looks like your post got cut off at a crucial bit! That said, worth checking your DC fuse rating and connection quality at the battery terminals — corrosion or a loose...
Rob Butler in Inverters & Chargers 3 months ago thumb_up 3
@EwanMurray going through something similar with my shepherd's hut build right now — four cells, four completely different voltages, like they'd each had their own little holiday before...
Slim in Batteries & BMS 3 months ago thumb_up 8