"Ohm" smart battery
 

Claims it will never die if you leave your lights on (because it gets electronically shut off). Also has features similar to the supercapacitor "boost packs" we have discussed on this forum.

Here is its indiegogo page: Ohm - The car battery is finally evolving

Neat idea. I like how light weight it is (6 lbs).

Personally, with a retail price of $220 I'd rather go with $220 of lithium and do an alt delete.

They also claim a 7 year life on the battery which seems short IMO.