Adorama offers two Panasonic eneloop AA Rechargeable Batteries 8-Packs, model no. BK-3MCCA8BA, for $39.98. (Add two to cart to see this price.) Redeem two $5 mail-in rebates to cut the price to $29.98. With free shipping, that's the lowest total price we could find by $14. (For further comparison, we saw one 8-pack for $15 earlier, still live.)

Also available are two Panasonic eneloop AAA Rechargeable Batteries 8-Packs, model no. BK-4MCCA8BAA, for $29.98. (Add two to cart to see this price.) Redeem two $5 mail-in rebates to cut the price to $19.98. With free shipping, that's the lowest total price we could find by $11. (For further comparison, we saw just one 8-pack in January for $19.) Rebate expires March 10.