Shnoop offers the Duracell AA NiMH 2,450mAh Rechargeable Duralock Batteries 4-Pack for $9.99. Coupon code "DEALNEWSAA" drops that to $7.99. With free shipping, that's the lowest price we could find for any Duracell rechargeable batteries 4-pack by $3. These batteries hold their charge for 365 days when not in use.