No I am still using a 16GB Full size SDHC. Idle time= 10 days?? No tablet I have ever lasted more than 2 days just siting turned on. That includes 2- Nokia 770, N800, N810 While I am testing my SD card adapter I installed many cards. The one I am testing now is the Sanddisk 16GB extreme III but this is not what I am after. I need to know if this is normal battery time for others with any card installed. Then I can work back from there. Actually the card I am using draw more current than any other card I have tested. This is really why I am asking this question. Thanks for the reply