If your car's broken down, nursing your smartphone's short battery life can be a real nightmare when waiting for rescue. Of course, that might not be much of a problem if Xpal Power (the company behind Energizer and PowerSkin) has anything to do with it. It's developed the SpareOne, a super-cheap phone that runs from a single AA Battery and will reputedly maintain its charge for up to fifteen years. The dual-band GSM phone is designed for emergencies, transmitting its location alongside its call
