Just went out to get some batteries and found this deal. Basically 1 pack (4x AAA, 4x AA, 2x C or 2x D) is around £2.89. But as above, two pack for £3 and 4 pack for £5. Great savings. Even cheaper than Duracell which is BOGOF in Tesco as well. Bargain in my opinion. Time to stock up for Christmas!