[Zaroff]

Alright, I have to be the devil's advocate again.

Firmware 4.1.7729 solves NOTHING. As far as battery is concerned.

So, I've posted in other threads about the problems I was having with this thing, pre and post firmware update.
So I managed to get a replacement unit, finally, from where I bought it from. Which means that currently, I have both on hand.

First, the screens couldn't look more different if they tried. Kobo QC? Forget about it. Screens are all over the place. If anyone doubts that, I can post pics within a minute.

Second, I set up the new device exactly following the recommendations, to the letter, of another poster (I forgot the name, mea culpa) suggesting never to turn on wifi in the first place, which I didn't. Only, what do you know, at the end of the setup process through the PC application, at first reboot, wifi is enabled by default. So, so much for that, but thanks.

And, finally, guess what, after a half day use of the new unit, the dreaded 10% drop appears. This is with 4.1.7729.

Kobo Aura One isn't ready for prime time, and should never have been released in the sorry state it's in. Period.

I strongly discourage anyone from investing in this thing until Kobo sort their crap out.