The cell phone that holds its charge for 15 years on just a single AA battery
Relying on just one AA battery, the newly launched SpareOne mobile phone holds its power for an astonishing 15 years, with 10 hours of consecutive talk time on a single charge. Developed by industry giant XPAL Power—which also makes the combined battery pack and phone case PowerSkin—SpareOne's basic interface may not have the bells and whistles of an iPhone, but it works well for kids or seniors who need to carry a phone in case of emergency.
The SpareOne works optimally with an Engergizer Ultimate Lithium AA battery—another XPAL Power product—but will operate with any alkaline, NiMH or Lithium power source. The lightweight, compact design is also ideal for outdoor adventurists who want to stay in contact, but without the bulk of a smart phone or the worry of losing a more valuable device.