You can find information & resources of science, biotechnology, chemistry, ecology, technology, science resources, mechanical engineering, earth sciences, astrophysics, nuclear & molecular at PortalScience.com
All About Batteries
Information about battery history and science.
http://www.allaboutbatteries.com
Battery University
Analyzer and charger maker offers web version of book about batteries and how to charge them.
http://www.batteryuniversity.com/
BatteryNews.info
The news behind popular media coverage of batteries. Articles, news summaries and resource listings.
http://www.batterynews.info
Green Batteries.com
Information about batteries for digital cameras and other consumer electronics, and their impact on the environment.
http://www.greenbatteries.com/
VRB Power
Site for company marketing Vanadium Redox Battery Energy Storage Systems. Includes QuickTime walkthrough of South Africa's VRB installation.
http://www.vrbpower.com/