Originally Posted by foxr
I will need roughly 160kw to obtain the wanted acceleration. What is your opinion off the top of your head to what battery you would think about using to obtain this in such a small space. The maximum height is 210mm, trying to find the full specs on the pan in the smart. I mean would it be possible to re-configure the leaf battery even if smaller clear down to 17kwh worth or would I need to custom build something out of 2 volt packs, all just theory I know but your knowledge is by far better than 99% of those I've seen. Thank you for your time, seriously!
Hmmm thats not easy. Remember you need room for wires and contractors and fusing and busbars then the enclosure etc.
Also the leaf battery is an advertised capacity. The 24kw leaf battery is about 18-20 kw usable. So you will need more or less ALL of a 2015 or newer leaf battery. What you want is not easy and cheep....
You can try to find something very power dense like the KERS cells lol
Or you can talk to John metric and buy the racing cells he sells...
Also I would be willing to bet you find 160kw in the real world gives you 5.5-6 sec 0-60. You are not making 160 kw the whole time You are making what should be a flat torque curve to say 60-70km/h (depending on voltage) then the HP will peak where the torque starts to fall off but with field weakening you will try to flatten the HP curve above the peak. I bet you need 200kw (into the system) remember also the wheels will not see 200kw its whats going into the controller and motor - losses.
Seriously aim for 200kw So I think you can make the 2015 leaf battery make 200kw for a burst on a warm day with a full charge.....