Panasonic BQ-CASE6SA Battery Storage Cases with 4AA or 5AAA Battery Capacity, 6 Pack Each storage case can store up to 4 AA or 5 AAA eneloop battery cells Dual thumb tab design makes the case easy to open and close Fit perfectly in a purse or briefcase for battery power on the go Comes complete with six clear Panasonic storage cases Engineered in Japan by the Panasonic design team