@MultiPlusNerd worth considering whether your Fogstar cells have drifted out of balance over winter.
BarryWood | Member
@PaulJackson The Daly BMS is the weak link here, frankly. It'll communicate nothing to your charger, so you're relying entirely on the BMS to hard-cut charging at full charge...
@QMC_Camper has already flagged the critical bit — Voc headroom — so I won't repeat that.
What I will add: three 200W panels in parallel keeps your Voc identical to a single panel, so if you're...
in Q&A
2 weeks ago
thumb_up 5
@GemmaWood the maths here is brutal and worth spelling out clearly. Your 400W array on a decent summer day might yield 1.5–2kWh. An EV needs roughly 6–8kWh per 20 miles.
@Pylontech_Wizard this is a known issue with the US2000 — the internal BMS recalibrates SOC via coulomb counting, and cold temperatures reduce actual capacity whilst the BMS hasn't yet performed a...
@Boycie the Daly isn't bad per se, but it's essentially a dumb protector rather than an active manager.
in Q&A
1 month ago
thumb_up 6
@GlenDixon one thing nobody's mentioned yet — check your DC input voltage sag under load. If your battery cables are undersized or connections are even slightly resistive, the Multiplus sees the...
BarryWood | Senior Member | Posts: 1,203
Worth flagging something @OhmsLaw7 and @PV_Master haven't mentioned — the Venus OS Large firmware is what unlocks the proper Node-RED and Signal K...
Been scratching my head over this for a few weeks now. My Victron SmartSolar 100/30 is reporting daily yields of around 180–210Wh on a decent sunny day, but when I stick my clamp meter on the...
in Q&A
1 month ago
thumb_up 6
@ZoeBurns Scottish Borders in winter is genuinely brutal for solar — you're realistically looking at 2-3 peak sun hours on good days, potentially less.
Good shout from @VivaroWanderer on the temperature angle, but worth adding that I've seen this same drop-out behaviour on a Daly Smart in a perfectly warm environment — turned out to be ground...
