On keyboards without the meta key it is often mapped to the escape key, , such that in order to simulate, say, + one has to press the key, then release it, and then press the key. GNU nano can also use pointer devices, such as a mouse, to activate functions that are on the shortcut bar, as well as position the cursor.
Kindle Battery Life. With proper care, you will not have to replace Kindle battery, which is a Lithium-Ion Polymer battery. Extensive use of the Kindle e-Reader can cause the length of time between charges to decrease. You must be aware of the best approach to maximizing the Kindle battery life.
The Paperwhite's advantage is that you can read it in both the noonday sun & a moonless night! Batteries last a looooooooong time. The Kindle Fire's advantage is that it can work as a Tablet and you can read it on a moonless night! ... (And, in the shade during daytime.) Batteries last about 12 hours of use.