2016 key fob not working after replacing battery

[Rusty]

Any help would be appreciated. This car has no ignition slot for key. 

[Trevor]

Did you manage to resolve this issue?

[JRA]

Doesn't sound like a battery problem to Me, assuming You have a second key that You are now using take it to Timpsons and they will produce a generic copy, WAY cheaper than a main dealer!