I bought a battery a month ago on sale. Its just been sitting. I just noticed its 550 cold cranking amps. i thought this was low and I checked online and a few auto stores and don't really see any that low for a 2001 grand prix gtp. Most are at-least 680 and up CCA for these motors.
I do live in Chicago pretty cold winters. I'm Just trying to figure out if I should try to sell the new one and get a higher CCA battery... The store will not take it back. They keep saying its the right battery. I looked up Pontiac grand am 2.2 engine that's what it probably is mostly used for....