craig mathias
Principal

Getting the most out of your battery

Feature
May 12, 20082 mins

Advances in battery technology and power-conservation techniques continues, albeit at a pace that seems slow for high tech. A few methodologies for testing battery life have been defined. Anyone interested in the conservation and measurement elements of these topics might consider the following resources:

•  JEITA Battery Run Time Measurement Method – This test from Japan defines what has become a fairly common procedure for evaluating the battery life of mobile devices. It is, however, multimedia-based, and does not directly consider wireless. BAPCo MobileMark 2005 (XP)/2007 (Vista) – These are commercially available test suites from a firm that specializes in performance testing of various forms. Energy Star Computer Specification – This well-known program of the U.S. Environmental Protection Agency covers many types of equipment that consume electrical power. Included here are testing specifications and a wealth of other information. Again, this information does not directly address wireless (indeed, the specified testing is performed with radios tuned off), but is quite interesting regardless. EPEAT – This organization specifies a broad range of environmentally related elements for certification under its program. This list is based on the IEEE 1680 standard, and the energy-related elements are primarily specified under the Energy Star program. 

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Wireless computing power saving measures may not be worth the effort >

craig mathias

Craig J. Mathias is a principal with Farpoint Group, an advisory firm specializing in wireless networking and mobile computing. Founded in 1991, Farpoint Group works with technology developers, manufacturers, carriers and operators, enterprises, and the financial community. Craig is an internationally-recognized industry and technology analyst, consultant, conference speaker, author, columnist, and blogger. He regularly writes for Network World, CIO.com, and TechTarget. Craig holds an Sc.B. degree in Computer Science from Brown University, and is a member of the Society of Sigma Xi and the IEEE.

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