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Tethercell Bluetooth Battery: Power over Power

by Lambert Varias

I never expected to find Bluetooth connectivity in a AA battery, but not only does this device now exist, it also seems quite practical. Once it infiltrates the battery compartment of your gadgets you can remotely toggle those gadgets on or off and more. This smart battery is called the Tethercell.


The inventors of the Tethercell – Trey Madhyastha and Kellan O’Connor – chose to make their device in the size of a AA battery because they claim that 60% of “primary battery-operated devices” use that size. Aside from the Bluetooth radio, the Tethercell is packed with other electronics, like a microcontroller, a temperature sensor and a voltage comparator. In turn, the Tethercell is powered by a AAA battery. So what can it do? Together with an iOS app and a Bluetooth 4.0-enabled iOS device, you can use the Tethercell to turn one or multiple gadgets on or off from up to 100ft. away. You can also schedule or set a timer to power off your gadgets and monitor your gadget’s battery level.

Pledge at least $35 (USD) on Indiegogo to reserve a Tethercell. Although it does reduce the available power of a device – you’re essentially replacing one of its AA batteries with a AAA that’s also powering something else – the convenience it provides could be worthwhile for many people – especially adults who want to limit their kids’ playtime with electronic toys. Not to mention its potential for pranks is quite high.

[via Ubergizmo]

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