I find the battery life on boox tablets to be pretty poor. At least with my usage.

Its kind of annoying to have to be charging every other day.

I think I've only had to charge the xteink x4 a couple times since I got it in March. But that's the case for any non-android ereader.

I'd be happy if the boox lasted a week with 2-3ish hours of use a day.