Key fob battery needs to be changed twice within a year

[joo]

Hi hope someone can help please. I've an A5 quattro on a 20 plate it's needed two new batteries I'm the key fob within the space of a year! This does not seem right to me I've never had to change a battery previously but 2 in a year? The car is at home everyday and not used everyday! I don't believe the dealer as he'd said something stupid before but then I ended up getting 4new tyres from audi! Please help feel like they think I'm stupid cos I'm a woman 

[Magnet]

What make batteries are you fitting Jo? 
Kind regards,

Gareth. 

[joo]

I'm not audi dealer is putting them in and saying the key is continually searching for the car etc but car is always locked so just doesn't make sense

[Magnet]

As a process of elimination, try fitting a new Duracell yourself and see how long that lasts.