Connect to battery-operated devices from an app.

  Get it on Google Play

Order Tethercell

Order Tethercell
Tethercell replaces ONE battery per device!


What Tethercell allows you to do:

- Turn AA-battery-powered devices on and off remotely

- Be alerted when battery power is low

- Set device schedules & timers

- *Coming Soon* Find Tethercell enabled devices with proximity function 

Tethercell Signal

Tethercell AA Battery Adapter Beside Iphone 4S

Examples of what Tethercell can be used with...


Mic Train Lantern Wire
Remote Baby monitor puppy Outdoor light 



Easy Setup

Tethercell is extremely simple to install. First, remove a single AA-battery from whichever device you choose.  Next, make sure that Tethercell already has a AAA battery installed within it, then replace the removed AA battery with Tethercell. No matter how many AA batteries are required to run the device, you only need one Tethercell. After the Tethercell is snug in the battery compartment, turn on the device, fire up the Tetherboard app after downloading it free from the App store and you're ready to connect from any iOS or Android device that is Bluetooth Smart compatible.

Installation of Tethercell

The Tethercell App (for iOS and Android)


The Tethercell iOS App is compatible with all Bluetooth Smart-enabled (i.e. Bluetooth 4.0) iOS smartphones and tablets. 


The Tethercell Android App is compatible with all Bluetooth Smart-enabled (i.e. Bluetooth 4.0) Android smartphones and tablets running Android 4.3 or 4.4. This includes over 160 devices already in the market.