[Tarana]

I have lots of devices, but that doesn't really answer your question. The problem you are having is your battery power going flat earlier than you think it should. Read the ad blurb for your unit to find out exactly what their parameters are (typically 30 min. a day with lights and wifi Off) and time how much you are using your reader. If the battery power is gone well before the expected time, then you have a dud and should replace it. If the battery power is gone because you read for extended amounts of time, then, I think you should consider having two units to manage your reading time accordingly.

As to my devices, you only need to look below my dinosaur image to see I have tons of devices and yes, I need to sell some of them. My personal favorites are the Voyage and the Kindle Keyboard. Among other things, the power in them lasts and lasts between charges.