It would help if we all complain on the Amazon Kindle Oasis product page, when writing a product review, found here:
https://www.amazon.com/review/create...in=B06XD5YCKX#
As far as battery life, it would be preferred, if a case or cover came out with a battery included that would plug into the micro USB port on the bottom.
When I think about it, I can easily charge my Oasis with a USB battery pack, gotten for $8 or less, like this one:
https://www.amazon.com/Acuvar-2600mA...dp/B00IYUKCUQ/
Though I wouldn't want to carry an extra object with me, dangling off my kindle.
I believe battery life isn't the real problem here. If you want your kindle to last through the week or month, this $8 battery pack will do the trick.
However,
It's the convenience of having it all in an easy to carry and travel pack; as well as battery longevity.
Reading and charging the battery, will result in the internal battery giving the ghost in 2-3 years; and this is serious killer!
Yes, I love the 7" screen, but I would have preferred them to have 5x larger battery over a larger screen!
I've changed the battery in my paperwhite; and I'm sure once my Oasis gives up the ghost, I will be reading from my paperwhite again.