Newegg offers the Panasonic eneloop AAA Rechargeable Batteries 12-Pack, model no. BK-4MCCA12SA, for $25.99. Coupon code "EMCATNS24" cuts it $22.49. With free shipping, that's $1.88 per battery, tied with our April mention, and the lowest total price we could find by $4. The batteries can purportedly be recharged up to 2,100 times.