Yes! The USB charger will work for both mobile phones and Kindle e-Readers. You may need to get a different cable, since the Kindle uses a Micro-USB similar to most Android devices, but different than the Apple iPhone lighting cable.
How long does a Kindle take to charge from dead?
For Kindle Paperwhite it takes 3 to 4 hours to charge completely from drained state. To note, 5W charger alone can… Charging a Kindle from dead battery condition is to be done under power adapter method, during which yellow led will glow.
What kind of charger do I need for a Kindle?
Purchase a micro USB power adapter online. You can purchase an official Amazon USB charger, or get a third-party US or EU power adapter. Some Kindles, such as the Kindle Fire, come with both a micro USB cable and an A/C power adapter.