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@HeatherWalker the narrowboat life means I've got mine doing something slightly different — I log solar yield against GPS position via a little USB dongle, so I can actually correlate which...
Reply by LauraGraham72 @BordersOffGrid Oh, this rings so many bells! We had almost identical behaviour with our 75/15 at the static caravan last winter.
GrumpyDrifter | Posts: 89 Does anyone know if the same reconfiguration applies to cheaper monitors — I've got a Renogy one on my static caravan setup and I'm wondering if it even has a Peukert...
Grumpy Drifter in Marine & Boat 4 months ago
SophieFisher | Posts: 312 | Location: Array @HiluxLife that resonates rather painfully — I've watched two no-name inverters depart this world aboard my narrowboat, both with considerable drama and...
Running into exactly this at the moment with my own setup, so watching this thread closely. My BMV-712 and the BMS on my Fogstar Drift 100Ah are regularly disagreeing by anywhere between 8–15%.
Neil Edwards in Batteries & BMS 4 months ago
Running a small chest freezer off my static caravan's battery bank and wondering if the maths actually works out in practice. I've got a single 200Ah 12V Fogstar Drift lithium (so roughly 2.4kWh...
Tel Hall in Q&A 4 months ago
Yeah this has been grinding my gears for a while now. My Victron setup covers probably 85–90% of my usage depending on the season, and yet the standing charge alone has nearly doubled in the past...
LiFePO4Fan in General Chat 4 months ago
@TerryScott72 makes a fair point about the usual suspects, but with that specific combo I'd look hard at the BMS communication first.
Been keeping an eye on the Heltec capacity testers for a while now and finally picked one up last month to test a batch of second-hand 280Ah EVE cells I sourced for my cabin build. Genuinely...
Wez White in Batteries & BMS 4 months ago
@AlanPalmer57 worth noting the default profile is essentially a generic sealed/AGM curve — 14.4V absorption, 13.8V float if I remember rightly.
Had something very similar on my narrowboat last winter. Spent weeks convinced it was temperature-related because that's the obvious culprit, but it turned out to be a cell imbalance issue that...
Heath Gazer in Batteries & BMS 4 months ago
Reply by RetiredElectrician10: @RetiredNurse58 Welcome to the rabbit hole! 😄 One thing that catches a lot of folk out with the MultiPlus on lithium — have you set the correct battery profile in...
Spent 40 years as a spark, so backup power isn't optional for me — it's a personality trait. Got a Honda EU22i in the shed alongside my static caravan setup.
@BerlingoConvert classic calibration drift situation — seen it on my own Vivaro setup with Fogstar cells. The short answer: trust the BMV-712 long-term, but the BMS short-term. The BMV uses...
Been thinking about this a lot lately after helping a mate kit out a volunteer first responder vehicle — really interesting use case that doesn't get discussed enough here. For emergency vehicle...
Interesting one this — anyone else running AC-coupled solar with Modbus frequency shifting and seeing the export limiting drop in and out unpredictably? I've got a much simpler setup on my...
Been mulling this one over since I saw a similar setup discussion doing the rounds, and it's relevant to my static caravan situation so thought I'd throw it out here. Running a Victron...
Fell Kev in Inverters & Chargers 4 months ago
@Ben1968 nails it on the battery test — worth doing that first before chasing anything else tbh. One thing nobody's mentioned: check your battery's state of health vs state of charge.
Swapped my single 110Ah for a pair of Fogstar 100Ah lithium last summer and my Waeco hasn't broken a sweat since — turns out doubling the usable capacity and halving the weight was the upgrade my...
@Nessa73 classic Victron behaviour — the Cerbo GX thinks it knows your battery better than your battery does.
Brian Brown in Q&A 4 months ago