Sanyo Eneloop Rechargeable AAA Batteries (4-Pack) for $7.99. Shipping is free on orders over $35. If needed, use this Filler Tool to pad the order for free shipping. Here is a screenshot for your reference. It features 800 mAH power, and recharges up to 1500 times with batteries maintaining 75% charge after 3 years of non-use.