Bought a new battery for my car 2 years ago when I bought it out of a guys garage where it was stored. The electrical has been acting funky for a month so I cleaned the battery terminals and all that jazz. Car wont start at all today.... Battery isn't dead but just went bad. I hook the multi meter up to it and run a test and sure enough, BAD. All while I should of been at school 10 minutes earlier.... Took it out and after school went and got it replaced for free. At least Costco's warranty is good! Problem fixed now