SpareOne cellphone claims 15-year battery life

4re Nut · Jan 12, 2012

Neat idea: http://www.engadget.com/2012/01/12/spareone-cellphone-claims-15-year-battery-life-we-go-hands-on/

Xpal Power (owners of Energizer and PowerSkin) has leveraged its battery-tech know-how into the SpareOne, a cellphone that can maintain its charge for up to 15 years on just a single AA battery. It's designed to be used for sponsorship, hotel use and (most importantly) emergencies, to throw into your trunk and forget about until you need to contact roadside assistance...

It looks like your average cheap cellphone, except where the screen would sit is a transparent plastic void where a prominently branded battery sits instead. It's surprisingly solid and well put-together, opening the battery compartment reveals a sizable capacitor -- which is what we think is the real hero behind its purportedly long life...

Call quality was basic and loud (like a phone from a decade ago), which sounds harsh to our ears, which have been cosseted by years of noise-canceling microphones...

It'll be available at some point this quarter, will take any GSM SIM or microSIM (it has an adapter) and cost $50.
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SpareOne cellphone claims 15-year battery life

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