Valid 4/22/11–4/30/11 in Staples® U.S. stores only. FREE after Staples Rewards: Offer good on Duracell® batteries, AA or AAA, 20/pack (item no. 703715 and/or 846026 only). Limit two packs per customer per week. Reg. price $11.49. Price eligible for Rewards is the amount paid at checkout after application of all promotions, coupons and Rewards redemptions.
AKA: Don’t use your rewards to pay for these or you won’t get the full rebate!
Also, there is a deal tomorrow 4/23 only for free paper:
Buy a Ream of HP Paper
Use the HP Paper FREE after Easy Saver rebate Coupon
Pay for item OOP
Final Price= Free after Rebate