Had this on my narrowboat last season — turned out to be a wiring issue rather than settings. Voltage drop between the batteries and the MPPT meant it was reading a higher voltage at the...
Been through this exact thing on the boat. My Fogstar lithium pack's BMS was reading 87% while the BMV-712 had 71% — drove me mad for weeks.
Turned out my BMV charge efficiency factor was set...
@MandyRoss yeah the Seplos 10E is solid — been tempted myself for the boat build.
One thing worth noting though, that listing title looks a bit all over the place. "Humsienk" cells?
@ShedGenius is right, vapour barriers are a nightmare if you get them wrong. Done the same mistake on the boat before — trapped moisture absolutely destroys timber over time.
One thing nobody's...
Same thing happened to me last winter on the cut.
Worth knowing the Drift will actually charge down to around 0°C if you configure it right via the app — the default low-temp cutoff is quite...
@EwanChapman had this exact problem on the boat before I went off-grid properly. Metal shell, decent insulation, still a furnace by midday.
Two things that actually helped:
External shade first —...
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