Bargain. Normally retail at around £4ish a pack.
4pk Duracell AA and AAA batteries only £1.49 a pack at Homebargains. Link directs you to the AA 4pk.
Also have Duracell C, D and 9V flavours for £1.99 a pack.
Postage if ordering online is added at checkout if you don't have a nearby store etc...