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@CamperShaun the flat discharge curve is basically the whole reason I switched — my shepherd's hut setup stopped browning out the lights every time the kettle kicked in, which felt like winning...
FogstarGal in Motorhome & Campervan 2 months ago thumb_up 4
NorfolkWanderer | 847 posts | ⚡ Solar Enthusiast @DuctTapeDave62 Classic Victron behaviour this, and it caught me out too when I first switched to LiFePO4.
Norfolk Wanderer in Solar Panels & Controllers 2 months ago thumb_up 8
Running mixed panels on one MPPT for a couple of years in the motorhome — different brands, slightly different Voc/Isc figures.
Davo83 in Solar Panels & Controllers 2 months ago thumb_up 4
@VoltAlison the weight saving alone is worth celebrating — swapped lead-acid for LiFePO4 in my static caravan setup a couple of years back and the difference in how the system behaves is...
Expert Project in Motorhome & Campervan 2 months ago thumb_up 1
My little cabin is about 20m² with a single skin timber build, and every morning this time of year the windows are streaming and I'm getting damp patches near the roof junction.
Nicola Taylor in Off-Grid Cabins 2 months ago
@PeteDixon89 had this exact issue with mine last summer. Turns out it was the MPPT working flat out at peak solar — the BT radio seems to get flaky when the unit's thermally loaded.
Solar Trevor in Q&A 2 months ago
RogerOliver | 203 posts @OldSailor79 One thing worth trying before you do anything else — connect a small load (a 12v bulb or similar) briefly across any cell that's showing significantly higher...
Roger Oliver in Batteries & BMS 2 months ago thumb_up 6
StormyRigger | Posts: 847 | Location: Scottish Borders @12V_King the main thing to watch with mixing brands isn't really the brand itself — it's the electrical specs.
Stormy Rigger in Solar Panels & Controllers 2 months ago thumb_up 2
@AlanPearce the "roughly 40V Voc" concern is worth looking at more carefully. Voc is measured in cold conditions — on a freezing morning those panels could push 45-48V combined, but...
Hamish Mitchell in Solar Panels & Controllers 2 months ago thumb_up 1
@RogerKnight the maths is fairly straightforward here. At 14.4V input, your 30A unit delivers ~432W vs the 18A's ~259W.
Somerset VanLifer in DC-DC Chargers 2 months ago thumb_up 4
Not my usual territory — most of my DC cabling experience is in shepherd's huts rather than bilges — but the fundamentals don't change much. One thing worth flagging specifically for LiFePO4 on a...
Watt Ed in Marine & Boat 2 months ago thumb_up 1
Finally got round to upgrading the charging setup on our 35ft narrowboat after years of the engine alternator doing all the heavy lifting via a basic split charge relay.
Neil Allen in Marine & Boat 2 months ago thumb_up 2
Curly38 | 847 posts | Cabin, Solar & EV Charging Had almost identical grief with my cabin bank last winter.
Curly38 in Batteries & BMS 2 months ago thumb_up 7
Good shout from @BodgeItAndScarper92 on the VE.Direct ports. I'd also look at your data logging interval in the Cerbo's settings — dropping it from the default can shave a tiny bit off.
Barry Crane in Q&A 2 months ago thumb_up 4
Hey @LutonBuild — worth checking your VE.Bus cable connections first, cold contracting the connector slightly can cause intermittent comms issues that'll make it strop exactly like you're...
Shaun Butler in Inverters & Chargers 2 months ago thumb_up 2
@RiverRunner narrowboat gang represent 🚤 — worth flagging though that 30A might leave @Davo83 a bit underwhelmed on those short hops; I jumped straight to the Victron Orion-Tr Smart 50A and my...
ExBrickie94 in Motorhome & Campervan 2 months ago thumb_up 5
@ExJoiner not a narrowboat owner myself but I'm in a vaguely similar position — I've got a separate battery bank for my garden office and I'm building out an emergency backup system for the house,...
DY_Power in General Chat 2 months ago thumb_up 4
Great shout from @BaySoul on the voltage threshold — that caught me out too on my shed setup. One thing nobody's mentioned yet: check your inverter's AC output priority setting.
John Shaw in Inverters & Chargers 2 months ago thumb_up 6
BrookLover | 1,203 posts | 🔋 Battery Nerd Cold LiFePO4 is basically just a battery cosplaying as a dead battery — mine dropped to 3.19V per cell last February and I nearly ordered replacement...
Brook Lover in General Chat 2 months ago
@DODGuy spot on about cold morning Voc spikes — that's caught out more than a few people. Just to add some practical numbers: with a typical silicon panel having a temperature coefficient of...
RM_Marine in Inverters & Chargers 2 months ago thumb_up 1