Lithium battery

Looking for a lithium batter any body have links or suggestions where I can get one making a cafe need to shed a few pounds

Motorcycle Batteries(not sure if any are of the Lithium type)

www.pegasusautoracing.com/group.asp?GroupID=BALLISTICEVO2
www.ballisticparts.com/products/batteries/12cell.html
www.spencercycle.com/category-s/232.htm
www.shoraipower.com/default.aspx
www.motydesign.com/8cell_prod.php
alienmotion.com/
www.turntechbattery.com/TurnTech%20Battery/Welcome.html

I saw a few on Ebay, but definately expensive...

Quick and easy way to lose weight. Cheaper than titanium.

Here's a comparison between traditional lead-acid battery and Shorai lithium batttery.

www.motoaus.com/products/reviews/shorai-...ghtweight-power.html

I am using a ballistic performance lithium ion battery in my ELR clone. It is very small and weighs about 1 1/2 pounds. Cranks out 275 amps though. So far I really like it, very expensive, $157.00. Got mine from Amazon.com.

Be interested to hear how the longevity is on the Li batteries on a motorcycle. The bike's charging system voltage is not very accurate and Li's typically need accurate charge voltage to get the correct capacity and also longevity. maybe OK, but I wonder about it.