I had a battery from Advance Auto, 5 year battery. Took it back with a date stamp of 40 months old. Guy asked for receipt: I told him its your battery with your date stamp. He told me unless I can produce a receipt he can do nothing. I asked what a receipt would prove if the date was on the battery, he told me original owner, warranty is non transferrable. I got the battery in the car when I bought it...So much for standing behind your products. Similar story with Hooker headers when they drilled the holes too low in the flange and the "O-rings" would not seal on the port. "Lifetime warranty on manufacture defect" but I couldn't **** them the 5 year old receipt so I was SOL. F them.