How much would a new battery for an iphone 4s cost to be bought and fitted by apple?

How much would a new battery for an iphone 4s cost to be bought and fitted by apple?

If its under guarantee it should be free if the battery life is < 50%. You do get 1 year guarantee when you first buy a electrical appliance.

Apple have the answers on the website. Here's what it says

"Service arranged through Apple costs £ 55.00. A £ 7.44 shipping fee will be added if this service requires shipping. All fees are in British Pound Sterling and include VAT."

Seems expensive but its best to get it done by the guys who know what there doing rather then some guys at a corner shop