[Maxion]

But also because it is not really 28 hours of battery life. If you just let it sit without touching it, the battery lasts for several weeks, if not longer.

It's a hard class of devices to give any sort of reasonable battery life length.

Regardless, the battery on these devices even back in 2012 was already good enough.

[bufferoverflow]

With light at 13 it won't last weeks. Not even 3 days.

[b3kart]

Why would you leave a Kindle untouched with the light on for 3 days?

[bufferoverflow]

Because we're discussing battery life with the light at level 13.