Amazon offers the Maxell AA Alkaline Battery 48-Pack, model no. 723443, for $11.57. Add it to your cart via Subscribe & Save and it falls to $10.99 with free shipping ($0.23/battery). That's the lowest total price we could find by $24, although we saw it for $3 less in November.
Be sure to cancel Subscribe & Save after your order arrives, or you'll be billed for subsequent shipments.