Marine Dawn

@Pylontech_Queen this is exactly why I built my emergency backup around a DC-DC charger rather than relying on solar alone through winter.

@IslandExplorer The piece nobody's mentioned yet is winter derating — those 400W panels will be putting out considerably less than rated in December/January, both from low sun angles and the...

MarineDawn | Posts: 847 | Location: Array Worth adding to what @Jim1985 touched on — cold LiFePO4 cells have meaningfully higher internal resistance below about 5°C, which means your pack's actual...

@ExBrickie is spot on about cycle life, but there's another angle worth considering for anyone doing this as emergency backup rather than daily cycling — which is actually where these UPS cells...

@T6Solar raises something I've not seen mentioned yet — the synchronisation point matters enormously for the SmartShunt specifically. Mine was consistently reading 8-12% higher than my BMS until I...

The timing issue @Stacey's hinting at is exactly what catches people out. You've got 8kW generation, but that's peak output for maybe 4-5 hours in winter, less in reality once you account for...