How do you replace the battery in icy hot tens unit?

To replace the battery in an Icy Hot TENS unit, first, locate the battery compartment, usually found on the back of the device. Use a small screwdriver or your fingers to open the compartment and carefully remove the old battery. Insert a new battery, ensuring the positive and negative terminals are aligned correctly, and close the compartment securely. Finally, test the unit to ensure it’s functioning properly.