http://www.solomotoparts.com/Ballist...ithium-3.6lbs/

http://images.solomotoparts.com/images/T/16hd.jpg

Ballistic 16 Cell HD Evo 2

$269.96

3.6 pounds

The Optima RedTop is 31.7 lbs.
http://www.optimabatteries.com/optim...dtop/specs.php

Some specs of the Panasonic can be found in this thread:
http://www.ft86club.com/forums/showthread.php?t=5990

I've used an Odyssey PC680 in my WRX and Mini Cooper S and they seem to perform well. I live in Houston so we don't have very cold winters. The Mini cooper sits in an airport parking garage for 2 weeks at a time and it will still start although it cranks a bit slower.

I tried an Optima yellow in my wife's CRV and it failed within 6 months. Apparently there was a known defect with that particular size of optima battery. I haven't bought another one since that time.

-my 0.02

Ooh, this looks great. But that's pretty expensive. What is the Cranking Amps?

Thanks for that link! I hope it works with the Toyota 86(not running any aftermarket stereo or anything).
3lbs battery is RIDICULOUS!! :D

I use one of these in my RallyX car:
Lawn and Garden Battery
http://shop.advanceautoparts.com/wcs...3_pri_larg.jpg

17lbs, $38. Rated at 230CCA, but I've tested these up near 300. I've even started the car in the winter with one.

I might put one in the BRZ too.

which makes sense because it compensates for the extra weight of a driver on the left.

with a car all about balance i would be hesitant to start messing with weight and the distribution of it.

The link to this battery on the front page shows it has 500 cold cranking amps (cca.)

Well that'll save u lots of cash...... Dont go changing up exhaust, suspension, wheels, or heaven forbid fit a turbo/supercharger.... That will seriously mess with the weight distribution.......

http://files.sharenator.com/funny_re...x266-51166.jpg

TR-B1500, really nice battery for the money. 15lbs. Not the lightest but great stand by life. They sell them with more or less capacity depending on your needs. There is an optional billet bracket they sell that works quite well too, you can see it in the installed picture. I got mine from http://www.tomiokaracing.com
http://sphotos.xx.fbcdn.net/hphotos-...76889051_n.jpg
vs stock.
http://sphotos.xx.fbcdn.net/hphotos-...41848932_n.jpg
Mounted.
http://sphotos.xx.fbcdn.net/hphotos-...80545503_n.jpg

How much does the stock one weight? (of the twins)

exactly. i've had my time with modding cars, my si has wheels/tires. intake, exhaust, and suspension.

the only thing i can see myself doing to the frs is a catback exhaust, and even then i will be paying attention to the design and try to keep the layout as close to stock as possible.

this is the kind of car i won't mind keeping close to stock because it seems to be so well engineered from the factory. slapping on a bunch of aftermarket parts does not seem right for this car.

http://3.bp.blogspot.com/-DV4XsE_vAx...-dog-smile.jpg

Lol.....

This car was designed to be aftermarket friendly though as said by Mr. Toyoda himself... I dont think having a lighter battery is going to change the handling characteristics very much at all but it is a weight saver which is a plus all round....

We currently have two lightweight kits in development with tray and tie down. ;) Should have it finalized here in a couple weeks.