Battery life on my Inkpad 3 is absolutely awesome, the best I ever had on an ereader.
In sleep mode the Inkpad loses a maximum of 1 % of battery in 1-3 days. On one occasion it lost about 10% in a very short time, but that was because of the magnets in my bag, which accidentely deactivated the sleep mode.
Maybe you have a faulty device. Or there is a corrupted ebook file on your Inkpad, which can't be processed and therefore drains the battery. Or maybe you just have a bag with magnets too?
