Starts Sunday 3/27 through 4/2.This is such a sweet deal! Love these Free battery deals at Staples. Get 2 Free Duracell AA or AAA Batteries (20 pack) after Staples Rewards. I think it’s easiest to just go buy them at the store and they will print off what you need to do for the reward. Reward is easy to claim online and comes quickly. LIMIT 2 per Rewards Number. Let me clarify this offer.. You will buy the batteries now (mine came to $30), then at the end of the quarter with your rewards card, they will email you a card worth $30 to spend on anything in their store! So, they will not be mailing you a check for the amount.