A lawnmower BAttery!!!!!!!!!!!

lolz

I'd keep the heatshield
And as far as the battery, are you sure it has enough amps to work everything on the car?

lawnmower battery will work just fine, Im going to put a motorcycle one in mine. If you live in a cold area have fun starting it when it gets bellow freezing. You might want to carry one of those battery booster/jump start packs around. and dont run your radio with the car off, esp if you have subs.

The heat shields are their for a reason. I however dont care if I melt stuff, I will just relocate it. So my car doesnt have them either. And yes I have melted a couple wires, so be careful.

IPO over on 3si runs a motorcycle battery on his drag car without a problem. Although he has no major accesories except the laptop for his standalone. Mikes95RT runs a small lightweight battery in his TT swapped RT. He said he has to charge it up like every couple months though