my token still works but I removed it from my account because it started giving me a low battery warning. Once it breaks or dies completely you have to either remove it with the one time password they gave you when you first activated it or talk with customer service to remove it from your account (they will ask you for several pieces of information to prove you are the account holder). Ideally you would remove it once it gives the warning though since you cannot replace the battery but it still has quite a bit of life left. The thing uses minuscule amounts of electricity for only a few seconds.