I bought this product so that I would have a backup battery and charger for an upcoming trip that includes several very long plane rides. I'm glad that I started looking for this early since this product absolutely won't help at all.The cord that comes with the cradle does not plug into the wall - or anything other than the cradle, that I can determine. Both ends of the cord have the same attachment on them - and I can't find any way for that attachment to plug into a power source... I even tried plugging the charging cord that came with the DS into it, but no go...