TL-CC1 - what consequence has it if I use it after "Start before"

At the back of TL-CC1 there is a date "Start before". What happens if I use it after this date? Is it only because of the battery?

Thanks

The period of logging (1 log per hour) before the expiration is about a year. Using it after the date will shorten this period. The life cycle of the battery is not warranted after the expiration.

With solitaire bliss, you don't have to worry about expiration because it is unlimited, you can access it as long as you want.

Playing Survival Race is addictively fun thanks to how it blends competitive racing with trap-dodging action.

It's interesting to consider the consequences of using TL-CC1 after "Start before." I wonder how this affects the basketball stars overall process efficiency.