How do you change the batteries in a Panasonic es rt51-s shaver?

To change the batteries in a Panasonic ES-RT51-S shaver, first ensure the device is turned off and unplugged. Use a small screwdriver to carefully remove the screws on the back cover of the shaver. Once the cover is off, gently disconnect the old batteries and replace them with new ones, ensuring the correct polarity. Finally, reattach the cover and screws securely.