Sanyo combines all of your battery needs into a sleek and convenient carrying/storage case with their new Eneloop 1500 Super Power Pack kit. The kit is equipped with 12 AA eneloop rechargeable batteries, 4 AAA eneloop rechargeable batteries, 2 "C" spacers, 2 "D" spacers, 4 position charger with worldwide voltage and a reusable carrying/storage case. Ready to use right out of the case, eneloop batteries maintain 75% of their charge after 3 years and can be recharged 1500 times. The charger will charge up to 4 AA or 4 AAA cells, has indicator lights to let you know when batteries are charging and fully charged plus 110V - 240V capabilities. Use the C or D spacers by inserting one of the AA eneloops to utilize for those size applications. Save money and the environment with the Sanyo eneloop batteries.