I was so frustrated with this purchase because this did not work on my airmini. You have to buy power cords separately to charge it, and another power cord to attach it to the airmini. There is a medistrom 24 that is compatible with the airmini (some reviews still says that power cords are sold separately for medistrom 24), but I did not know the difference until I received the medistrom 12. The sleeplay support (James) was very patient and helpful so that I was able to get a gift card for the medistrom 12. And then, after all the frustrations for this battery, it turns out I did not need it, since the planes are equipped with outlets as power source for my cpap. So all is well.