Shunt_Geek

@YorkshireExplorer yeah the forum does that sometimes, mobile browser I'd guess. @GafferTapeKing — interested to see where you were going with this. Mixed Pylontech banks are a bit of a minefield.

@ColJames74 the absorption/float transition on cheaper controllers is often where it falls apart with lithium — they'll either cut off too early or keep topping up when they shouldn't.

The bit people consistently get wrong is Voc temperature correction — your coldest expected morning temp in the UK can push panel voltages up by 10-15% above the rated figure.

Good shout from @JennyParker on the thermal angle — worth adding that the 100/30's BT antenna is right inside the main housing, so if it's mounted in an enclosed space or getting direct sun, the...