i just saw a diy mini battery install with an odessey and cant find it now. whats the best mini battery for around 100$ and where can you buy em? im so cal but i've never seen odessey's on shelves.

 

Summit Racing carries odessey batteries, but if you want the whole kit (including the tray), try a place like lancershop.com

 

My friend has a small oddysey battery in his s14 and its his drift car. he says that its not a good battery for everyday driving because its small and it doesn't produce enough voltage for all the neceseties like ac, radio etc. They are mainly for racing do to the fact that your not draining the battery as much. I know that the alternator does most of the work but the battery does a lot as well. So my only sugestion for you is to just stick with something in the same size range as the stock battery.