Very disappointed with this product. The power supply is not done continuously to my Ipad2 and stops every 20-25 seconds +/- 7 seconds what I'm sure is not short-term benefit to the battery of the iPad. Is this is a technical problem of the adapter I received or is this the way for all adapters of this type? I do not know. Amazon does not offer me by sending a new similar article and in doubt what to do? Order the same item and end up with the same problem? I ask ....