Toys R Us is offering buy one, get one on their brand batteries.
AA 20pk ($6.99) - http://www.toysrus.com/product/index.jsp?productId=3889645
Online Only! Buy 1 Get 1 FREE ALL Toys"R"Us Batteries PLUS Sale Prices!
HOW IT WORKS
·Must add 2 items to cart in order to qualify
·Maximum 1 discount per order (though I placed two separate orders and both were accepted)
·This promotion does not combine with others