Originally Posted by
cossynut2
As you have said most normal sized batteries will not weigh 20 kg and the problems that it seems fitting a tiny race battery can cause for the sake of quite a small weight saving would not be worth it in my opinion.
I wonder if there were 2 cars the same, both with the same power and 1 has a lighter weight battery in reality what difference it would make to performance figures?
In terms of what you and I might experience it may not feel too different but ask an F1 team if they would like to drop 20kg and how it might affect numbers and they would be over the moon with that sort of saving.
You could certainly measure 20kg in performance on a road car but how much is hard to say..you could run a car up the strip with both and see the difference but a good or bad launch would skew the figures.
I know my track car felt much more lively after I stripped 100kg out of the interior (you could hardly pick up the electric seats but the Recaro SPG buckets were easily picked up one handed)
If you try spinning around with a car seat in your hands and then try it with something 20kg lighter you would feel the true difference.