Fantastic deal i picked up on today instore,
they got duracell batteries packs of 4 with 4 free
but also they are on Buy one get one free.
So in theory ... its buy 1 pack get 3 packs free!! (16 batteries altogether - thats 25p a battery)
This is nationwide as these batteries we're allocated to all stores a few weeks back.
great price for a good battery!