Webarchive backup: "Charge Controllers for Stand-Alone Systems" (Web page), part of A Consumer's Guide to Energy Efficiency and Renewable Energy, U.S. Department of Energy. Retrieved on 2007-08-20.
blueskyenergyinc.com: What is a Charge Controller? Citat: "...The basic functions of a controller are quite simple. Charge controllers block reverse current and prevent battery overcharge. Some controllers also prevent battery overdischarge, protect from electrical overload, and display battery status and the flow of power. Let’s examine each function individually..."
