Tommy Cookers wrote: ↑
Tue Nov 23, 2021 11:34 am
last night's TV seemed to say that .....
BEV makers tell people to operate the batteries between 80% and 20% capacity
MG even saying don't go below 50% - and others saying don't hold at 100%
for best battery life
on some cars this % is apparent to the user
often the range available figure isn't reliably based on depletion to eg 20% capacity (or replenishment limited to 80%)
Range is range, it should not be affected by recommendations to improve battery life, they´re different things.
Same as ICE specs show a maximum bhp, but it´s not recommended to use that max power constantly, or the engine may overheat and cause serious damage to the engine.
That recommendations to stay between 20-80% of battery capacity is the reason I´ve stated several times IMHO lithium batteries are far from a good match to BEV, apart from the high price. I follow that recomendation with my phone batteries since smartphones exist btw, and I´ve never replaced a single battery even when I always keep same phone for 4-5 years. Even at that point battery capacity don´t show any sign of degradation thanks to this. I try to follow this with any lithium battery, from a portable air compressor I carry on my bike, to hand tools
I strongly recommend to follow that advice. As I´ve done several times in this thread for years