View Single Post
Old 10-16-2015, 03:53 PM   #212 (permalink)
quagss
EcoModding Lurker
 
Join Date: Jun 2015
Location: Syracuse, NY
Posts: 11

Subi - '15 Subaru Impreza Premium
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by RiceCake View Post
Capacitors have self-discharge.

Couple that with the fact that the caps don't have a lot of amp-hour capacity, and your car will undoubtedly pull a tiny trickle of current to keep your clocks and settings in order...

So unless you plan to charge the car after it sits a few hours (which will undoubtedly result in a totally dead capacitor bank), you'll need a battery.

And then you've defeated everything.

Neat idea though as a boost option. If you could get 6 seconds of cranking out of a bank of them, it would be nice to have in winter.

2000+ cranking amps for the win

Edit: Also without inter-cell balancing, a single cell could (theoretically) be overcharged by the cars alternator, resulting in a nasty explosion (or just the cap venting, YMMV).
Thankfully you payed attention in Physics!
  Reply With Quote