What are the best kind of batteries to use for my digital camera?
Many manufacturers offer proprietary lithium ion battery systems with their cameras. These are very sophisticated batteries with very long life. Sony’s Infolithium battery system is perhaps the best example of this technology. In addition to offering very long life, this system can give an accurate measurement of the amount of operating time left on a charge. The negative side of lithium ion battery systems is that these proprietary systems tend to be very expensive. If your camera takes standard AA batteries, then Nickel Metal Hydride (NiMH) batteries are both the most economical and longest lasting option. It may be surprising to you that these rechargeable batteries would last longer than a fresh set of alkalines, but they usually do by a large margin. NiMH has an advantage because cameras are high current drain devices and alkaline batteries have high internal resistance, which makes it hard for them to provide high current for extended periods. (If you try some in your camera, you
