[walter822]

Originally Posted by Billi

I know this is not exactly what you've been asking, but have you tried updating your reader with the firmware mentioned in this thread?

https://www.mobileread.com/forums/sho...d.php?t=222642

It helps improving the battery performance as you get a real shut-down.

Many thanks for your tip. It will surely improve my battery life! But I am still looking for a spare one.