An Astonishing Autheticator

AN astonishing Authenticator

I left WOW because of trolls many years ago they was simply allowed to wreck people games, but i logged back to have a look at WOW 3 revamp, given i played WOW from WOW1. Then i realised my authenticator wouldnt work, so I gave it a try, and damn it gave me a low battery sign but it still give me the code to log in, so I looked it up when i bought the authenticator, Dec9 2009, the battery has last 11 years, I just wouldnt of thought that possible. How on earth has it lasted 11 years?