New in sealed box 2013 Fire HD 1 set 2 years in person draw I purchased when was 4 years old.... 2 god only knows it too was sealed got 1 year ago... Both have very powerful batteries. Amazon Phone 1st got in 2014 2nd got in March 2016 Both had strong batteries. When the 2nd on got so it was loosing charge 2 hours before the 1st one I got dumb an tried to have the batteries changed they destroyed them
.... Kobo Aura 6 inch model got new in box 18 months ago Still holding charge going strong!