Originally Posted by
Caddyshack
I am sorry for being so silly.
My large car battery compared to the lithium is over 15kg to 20kg lighter. I can weigh them and post up a picture for proof but cannot see the point to overcome an insult.
The drag strip may be very different but I can assure you that I can do a faster lap around a circuit without a passenger and replicate that many times.
Re- read the reference to F1, my point was that 20kg change in weight there would change the outcome of the race for certain and the engineers would jump at the chance. All weight savings add up, if you can save a kilo here and there it makes a difference, if you do not accept that then power to weight ratios will not make sense either.
100kgs makes a massive difference to the handling of any car along with the longevity of many of the cars parts.
I will let the thread get back on track as this will only end in a silly internet argument.
If you want to buy a battery that is lighter then do so, if not then don't.
Of course 20kg on a 400kg car is a big difference.....does it apply to a Volvo 940 ??? I just cant see it. Although if he has a 4-500kg 940, I'd love to see it and how he's achieved it ! lol )
20kg from a 16-1700kg car...really, no need to get worked up about it. And as said, it wouldnt be 20kgs anyway. I have a 940 turbo myself, and whilst I havent weighed the battery in it, I'd guess its in the 17kg range as it is smaller/lighter than the one in my Granada. But it is the type intended for the Volvo.
The heaviest battery I've ever used was about 22kgs, that was a big Optima, although it died.. My current also huge battery is around 18kgs. Probably about twice the size it needs to be...but who cares ? I know i can sit with fans running, radio on etc etc and it wont let me down, likewise if I ever need to crank the engine over a lot...I know it wont let me down or go on fire.
So as said, you can get a very good powerful normal battery in the 10-12kg range very easily and cheaply, I simply chose a heavier one.
And I'd take 100hp more vs 10kgs weight reduction in almost all circumstances.