A bunch of years back I got a Rigid cordless drill. After a time one of the batteries died. Taking it to HD I was told I had to take it to an "authorized service center". The service center wanted to see the receipt, and really wanted me to bring the entire drill/batteries/charger in for service. I didn't know about that later part and they let me slide. They had to order the battery but I got a new one. So the 'lifetime warranty' isn't entirely useless.

A few months later other original battery died. Problem is the receipt has faded to a blank white sheet of paper. I will have to see what hey can do for me. Worse case I think I can get a duplicate receipt from HD or the CC company.

But my advice is that if you buy anything which might potentially need service photocopy your receipts because the thermal paper ones fade.