https://electronics.woot.com/offers/48-pack-energizer-max-aa-alkaline-batteries-1 12-Packs 4-Count Energizer MAX AA Alkaline Batteries (48 batteries total, E91DP2-24) for $19.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is $6 per order.