Batteries are the most common way of powering equipment not connected to the electric grid--making this topic of vital interest to nearly every ham.  The care and feeding of batteries is a very popular topic, not just among hams, but nearly everyone these days.

• Which Battery Should You Use in Your Equipment?
  QST April 1999, p. 40-42
  NiCd, NiMH, Alkaline, etc ... How do they differ from one another, and which is best for your application?
• Nickel-Metal-Hydride Batteries in Amateur Radio Applications
  QST September 1994, pp. 38-39
  Meet the newest power source for portable equipment: the NiMH battery
• A NiCd Never Forgets. Or Does It?
  QST November 1994, pp. 70-71
  A discussion of memory effect.
• A Smart Charger For Nickel-Cadmium Batteries  
  QST September 1994, pp. 40-42
  Recharge your Hand-held's battery pack FAST, with this easy weekend project
• The Ubiquitous, Notorious NiCd  
  QST June 1995, p. 74
  Technical Correspondence - NiCd battery memory effect
• Testing Rechargeable Alkaline Batteries - and More  
  QEX April 1996, pp. 3-12
  The ARRL Lab investigates those rechargeable Alkaline batteries.
• A Battery-Voltage Indicator  
  QST October 1998, pp. 50-51
  Here's a quick and inexpensive project that allows you to keep tabs on your battery's condition.
• Honey, They've Shrunk the Batteries! 
  QST December 2001, pp. 31-35
  A rundown on today’s popular batteries, their uses, characteristics and care.
• Getting the Most Out of Nickel-Cadmium Batteries  
  QST February 1992, pp. 40-45
  Help for separating NiCd fact from fiction.

• Battery University
  A wealth of information on batteries.
• Car and Deep Cycle Battery FAQ
  Tips, information, references and hyperlinks about car, motorcycle, truck, marine, recreational vehicle starting and deep cycle applications.
• Greenbatteries.com
  Battery FAQ, Battery Myths, Battery6 charger FAQ