Get Energizer batteries for less than 5 cents per battery with printable coupons.
Check your Walmart stores for specially-marked 8 ct. packages of Energizer batteries and get a $10 Walmart gift card with a mail in rebate when you buy 2 packages. Use two of these $1 printable Energizer coupons and you will pay only 37 cents for an 8 ct. package of AA or AAA batteries–less than 5 cents per battery. You can also find a $1 Energizer battery coupon in the 10/27 Smartsource circular if the printable coupon runs out.
You can do this deal 4 times, so you can get 8 packages at this low cost. You can print 2 coupons per computer.