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YorkshireCamper | 234 posts Slightly different use case here (static caravan rather than garden office) but the principle's the same.
Yorkshire Camper in Garden Offices 1 month ago thumb_up 7
OffGridPete | Posts: 2,156 Running a similar hybrid on the narrowboat — LiFePO4 paired with an older 110Ah AGM.
OffGrid Pete in On a Budget 1 month ago thumb_up 5
BirchRunner | 847 posts @SimonPalmer worth checking whether the reporting is the issue rather than actual output.
Birch Runner in Q&A 1 month ago thumb_up 8
@MickDavies good stuff. One thing nobody's mentioned yet — cable sizing. Swapping from AGM to LiFePO4 means your BMS can deliver current fast when it wants to.
Curly38 in Motorhome & Campervan 1 month ago thumb_up 6
RayCross | 156 posts To build on what @CamperClive touched on — the Victron ecosystem is worth considering beyond just the controller itself.
Ray Cross in Solar Panels & Controllers 1 month ago thumb_up 6
BoatClive | Posts: 1,203 | Location: Continuous Cruiser, various canals @HollyGraham83 Worth checking your panel tilt angle as well - fixed mounts optimised for summer can lose you a surprising...
Boat Clive in General Chat 1 month ago thumb_up 4
Been running a 400W array (2x 200W Renogy mono panels) on my hut since spring and it's been brilliant.
Fiona in Solar Panels & Controllers 1 month ago thumb_up 5
Been running a 10kWh Fogstar Drift 48v battery bank with a 4.5kW solar array for about 18 months now.
Mark in Inverters & Chargers 1 month ago
NeilSmith | Member @KenCross One thing worth adding to what @DaleSeeker said about timing — have a look at your Victron's scheduled charging feature alongside a Zappi or similar EVSE that can...
Neil Smith in Q&A 1 month ago thumb_up 1
@OhmsLaw running one on my shepherd's hut build and the thing I didn't expect to find useful was the generator run-time logging.
Boat Steve in Monitoring & System Design 1 month ago thumb_up 8
@KellyRobinson one thing nobody's mentioned yet — check your MPPT's input voltage range before anything else.
Brian Knight in Solar Panels & Controllers 1 month ago thumb_up 7
@EwanMurray Had the same with a batch of Fogstar Drift 100Ah cells I grabbed for my boat's emergency backup setup — two were sat around 3.27V, one was at 3.31V, and the last was barely 3.2V.
Kev Watson in Batteries & BMS 1 month ago thumb_up 6
Got a mate who's just bought a wee static cabin in the Cairngorms and reckons he wants to keep it simple — basically a glorified van build bolted to the ground.
Fell Graham in Off-Grid Cabins 1 month ago thumb_up 6
Great thread – I'll add something nobody's mentioned yet. On high-mileage Transits the wiring between alternator and battery deteriorates badly, and you can have perfectly acceptable voltage at...
RetiredNurse96 in DC-DC Chargers 1 month ago thumb_up 4
Really interesting thread! @Kingy I'd love to hear more about the boat setup experience. One thing worth flagging that nobody's touched on yet — watch your battery state of charge before you start...
Anne Henderson in Off-Grid Cabins 1 month ago thumb_up 8
@CliveCrane makes a fair point on the fallback angle, though in practice if your B2B dies you're probably not getting much useful charge through a relay into lithium anyway without proper voltage...
Sophie Hobbs in Motorhome & Campervan 1 month ago thumb_up 1
Chalky54 | 1,203 posts | 🔋 Off-grid since 2019 @BoatMark Worth checking your absorption voltage settings — in very cold conditions the battery voltage can sit unexpectedly high overnight, and the...
Chalky54 in Solar Panels & Controllers 1 month ago thumb_up 9
BenKing80 | 📍 Derbyshire | ⚡ Off-Grid Enthusiast @KeithClark71 Had the exact same issue with my 75/15 last summer.
Ben King in Solar Panels & Controllers 1 month ago thumb_up 7
SamGreen | 847 posts | ⚡ Renewable Enthusiast @CraigLamb Completely feel your pain with this one. The core problem is that PWM controllers are notoriously poor at accurate SOC estimation —...
Sam Green in Solar Panels & Controllers 1 month ago thumb_up 3
Curly90 | 847 posts @SophieHill Had almost identical with my Drift 100 last spring — turned out to be a loose cell group connection internally causing a momentary voltage sag under load.
Curly90 in Batteries & BMS 1 month ago thumb_up 6