Quote:
Originally Posted by X5 45e
Nice thinking. But I am not convinced. What you are basically saying is that the battery is charging to 24 kwh and only has 17 kWh available that when used, require 24 kWh again to be 100% charged. So 7 kWh are lost somewhere. This would give a terrible miles / kWh.
I am not an electric engineer and I al just reasoning like you.
It would be interesting to know what the difference in battery management between the US and Europe is.
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I don't think the batteries are charged to 100%. Tesla has the same feature where it usually charges to 90%. You can lower this percentage to help increase the longevity. I think my friend sets his at 70% which means all the cells only charge to 70%.
Also 17kWh is the useable capacity. That could mean 0 to 70%, 5 to 5% or 10 to 80%. Depleting to 0% is also not good for Lithium Ion batteries so hopefully BMW has taken that into account.