My batt has gone straight to hell...

Are there any specificic specs that I need to know before buying a new battery for my DS?? I was thinking of buying a 12-volt motorcycle battery from Wal-Mart for like 40$..

Thanks

 

i think it's 13A. measure dimentions. make sure + and - aren't reversed.

 

anyone know what specific battery from walmart to get? if so i will go pick one up tonight.

thanks
rob