Use the power adapter that came with the Kindle Fire, start charging the Fire by connecting one end to a wall socket and the other end to the device itself. When the Kindle Fire is charging the power button light will be orange. The light will turn green when the device is fully charged and ready for use.How do you replace the battery on a Kindle Fire?
Make sure the new battery is the correct replacement by comparing it with the old battery. It should be the same size and have the same wiring connector. Push the connector on the battery's wiring harness into the Kindle's wiring connector. Gently push the battery into the opening.Will any micro USB cable charge a Kindle?
Almost certainly yes. The Kindle has a micro USB charging socket, so can be connected to a USB port on a computer or to a 5V USB charger with a micro USB cable. Amazon of course have their own charger: a little bit expensive, but with a standard USB port (5V at 1.8A).