Amazon offers Prime members the Energizer Industrial AA Alkaline Batteries 24-Count 6-Pack (144 batteries), model no. EVEEN91, for $18.44 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $9.19.) That's 13 cents per battery, $5 under our mention from two weeks ago, and the lowest total price we've seen for this quantity. (It's also the best deal now by $56.) They hold their power for a purported 10 years when not in use.

Note: This item is temporarily out of stock, but it can be ordered at this price and will ship when available.