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@MarkGibson interesting build — I've got a similar Victron/Fogstar setup in my static and the one thing that caught me out early on was the battery interconnects.
Daily Build in Off-Grid Cabins 3 months ago thumb_up 2
Robbo41 | 234 posts | ☀️ Solar Tinkerer Ha, guilty as charged! Built my first 8-cell pack back in February and I keep eyeing up a second batch for the workshop.
Robbo41 in General Chat 3 months ago thumb_up 6
Had this exact issue with my 100/30 on the garden office setup. Turned out to be a firmware thing — make sure you're on the latest version via VictronConnect (it'll prompt you when connected, even...
Breezy Sparky in Q&A 3 months ago thumb_up 8
@TrevorEvans is right about the configurability, but worth flagging that lowering that threshold is genuinely risky territory — lithium plating on the anode is a real degradation mechanism, not...
Trigger in Batteries & BMS 3 months ago thumb_up 1
@FormerMechanic15 curious whether switching to MPPT actually made a noticeable difference to your morning recovery times in those short December/January days?
Cerbo_Queen in Q&A 3 months ago
Swapped my Transit setup for a 47ft narrowboat last spring and just bolted the same 200W Renogy panel and Victron SmartSolar 100/20 onto the roof like it was still a van — turns out a canal...
Frosty Hiker in Marine & Boat 3 months ago thumb_up 5
@Deano13 what panels are you actually running? I've got two Renogy 200W in series on my Sprinter and noticed the Voc climbs noticeably on cold mornings — like well above the rated spec.
Sprinter Wanderer in Solar Panels & Controllers 3 months ago thumb_up 5
Hey @MoorDweller, nice setup! One thing worth checking is whether your split-charge relay is voltage-sensing or a basic on/off type.
Chunk in Motorhome & Campervan 3 months ago thumb_up 4
DailyProject | 203 posts @KateMitchell73 one thing worth adding to what @DownsExplorer and @Gill1990 are getting at — don't forget to account for cold weather voltage spike.
Daily Project in Solar Panels & Controllers 3 months ago thumb_up 2
Grabbed a second-hand Victron MultiPlus off a narrowboat lad for £120 — thing's been faultless on my own boat for two years, so statistically I've already won at life.
Stormy Drifter in On a Budget 3 months ago thumb_up 7
@TinaHenderson one thing nobody's mentioned yet — if your Fogstar Drift has its own BMS (it does), you need to account for what happens when the BMS disconnects the battery under a fault...
Mark Bennett in Motorhome & Campervan 3 months ago thumb_up 4
HarbourKev | 2,156 posts | ⭐⭐⭐⭐⭐ @LuckyHiker yes, actually done exactly this — three mismatched panels into a Victron SmartSolar 100/30 on my off-grid setup.
Harbour Kev in Solar Panels & Controllers 3 months ago thumb_up 9
Currently speccing out a inverter/charger upgrade for the boat and going back and forth on whether to go 48v system or stick with 24v.
Panel Harry in Inverters & Chargers 3 months ago thumb_up 6
@HazelSoul This took me a while to get my head around when I first set up my garden office system. What nobody tells you upfront is that the charging side is where cold weather gets really nasty —...
Watt Helen in Batteries & BMS 3 months ago thumb_up 3
HamishMitchell | Posts: 347 | Location: Array Worth double-checking your cell-level overvoltage protection — JK defaults are often set quite aggressively out of the box (3.65V per cell trigger is...
Hamish Mitchell in Batteries & BMS 3 months ago thumb_up 2
Ian1968 | 847 posts @NeilJackson Snap! I did exactly the same about two years ago. Mine's a 300W panel into a Victron 100/20 feeding a 100Ah lithium, and honestly it was the right call.
Ian in General Chat 3 months ago thumb_up 3
@Keith1981 mate if that 2x120V unit is real I genuinely want to know which parallel universe Screwfix you found it in 😂 Running a MultiPlus-II 12/3000 in the motorhome with a Fogstar Drift lithium...
Solar Rob in Inverters & Chargers 3 months ago thumb_up 1
Yeah @WattJane this is something I noticed pretty quickly after switching over. The real killer with PWM on overcast days is that your panel voltage drops right down to battery voltage, so you're...
Chris in General Chat 3 months ago thumb_up 9
Been running a 200Ah LiFePO4 in my motorhome for two winters now — same issue caught me out first season.
Paddy Dixon in Q&A 3 months ago thumb_up 1
I've been running a 200W panel on a Victron 75/15 MPPT for about eight months now and honestly the difference from my old PWM setup is pretty stark, especially through this grey stretch we've had...
Watt Jane in General Chat 3 months ago thumb_up 1