A Bluetooth device allows you to talk on your cell phone hands-free by simply hooking the device on your ear. You can make and receive cell phone calls by touching a button on your Bluetooth device. Bluetooths have rechargeable batteries but eventually these will need to be replaced with new ones. Replacing the batteries in the device is a relatively simple and quick process. You can consult your owner's manual to determine what battery your device uses or simply take the battery out to find out. These can be purchased at your local electronics store.
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Hold down the power button and turn off your Bluetooth device.
Slide the battery cover down to remove it. This is usually on the back of the device, depending on the model that you have.
Remove the battery, noticing if the negative or positive side is down. This information can also be found in the battery compartment and will have either a "+" or "-" sign, telling you if you need to insert it positive side or negative side down. Properly dispose of the old battery.
Insert the new battery. Ensure that you have placed it correctly, either positive or negative side down.
Replace the battery cover and click it into place.
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