Adorama offers the Panasonic eneloop AAA Rechargeable Batteries 8-Pack, model no. BK-4MCCA8BAA, for $14.99 with free shipping. (Amazon offers it for the same price for Prime members; Best Buy has it for the same price via pickup.) That's the lowest total price we could find by $2, although we saw them for a buck less two weeks ago . Panasonic claims that these batteries can be recharged up to 2,100 times.