looking to install a Braille battery

[Kevs Toy]

As the title says, I'm looking to install a Braille battery in my AE86. I'm deciding between these two

http://braillebattery.com/index.php/batteries/b129/#

http://braillebattery.com/index.php/batteries/b14115/#

I'm more leaning towards the first one just for the fact it's even lighter. My question is if anyone has any familiarity with installing these in their eight six? Wondering if I need to order the aluminum mount kid they sell or if I could make it work in my stock battery tray given that the stock battery is pretty small to begin with. Also, I realize the terminals are the wrong side but figured my cables should be able to reach if I just flip the battery around. Trying to figure this out soon since my battery's dead and would like to get something lighter as long as I dont have to break the bank and also have to order a mount bracket as well.

[Criard]

what the heck are these batteries??? why are they so friggin expensive?

[toyomoho]

Suggest you write or call the vendor or the rep and state your needs and what type of battery will be replaced.

[Kevs Toy]

Theyre so expensive because they dont weigh shit. And the Braille is better than its competitors because it actually puts out decent cca (for its size)

[nbm077]

you can get LIPO cells and make your own battery that would be even LIGHTER!!