F13 Key battery change

[Exige77]

I’m going to replace the batteries in my F13 keys which are for a comfort entry model.

It seems an easy enough job, plenty of vids on YT.

My question is, once I change the battery, will the key work as normal ? Is there any any re configuring or re setting needed ?

How long should a battery last ?

Thanks

[RafflesNH]

If you have the same key as this one:

https://www.youtube.com/watch?v=6yjfjeomw9s

then a reply to a question by Mike Motorbike suggests that no reprogramming is required.