Best Buy offers the Dynex Assorted Battery 42-Pack, model no. DX-BATBOX, for $10.99. Opt for in-store pickup to avoid the $7.99 shipping charge. That's $6 off list and the lowest price we could find, although it was about 50 cents less last month. It includes 16 AA, 12 AAA, six C, six D, two 9V alkaline batteries, and a storage case.