How do you replace battery in a prs-700 reader?

To replace the battery in a PRS-700 reader, first, ensure the device is turned off and unplugged. Use a small screwdriver to carefully remove the back cover, exposing the battery compartment. Disconnect the old battery and replace it with a new one, ensuring the connections are secure, then reattach the back cover. Finally, power on the device to check if the new battery is functioning properly.