We all need batteries this time of year!
Walked into Robert Dyas in Eastleigh today (probably nationwide) - 12 pack of Philips PowerLife AA batteries (says Alkaline on packet) @ £1.99
Sounds cheap to me... Does not appear to be online, instore only.
BTW: If you buy anything in-store their giving away 15% off vouchers for this Friday 17th... so buy a pack of batteries for £1.99 and get 15% off high-ticket value electricals on Friday - toasters, kettles, cookware, gardening, food mixers etc...