Energizer e2 Lithium

These lithium batteries are great. They are long lasting, lightweight and work great in freezing temperatures. Their "BEST BY" date is often ten years or more. If you have a device in a fridge or freezer or… outside where it gets cold/freezing, then these are very useful since alkaline batteries will often fail in cold temperatures. They are also useful for devices that are inconvenient to change batteries, like clocks or wireless outdoor temperature or motion sensors. If you're wealthy, then you might as well use these instead of alkaline or rechargeables, but because of the relatively high cost, I only use these for "special" applications. Otherwise I use alkalines or Sanyo Eneloop rechargeable batteries.

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I have been using digital cameras for about 10 years now, and the issue of batteries has always been a major cause for problems. First there were NiCd with their "memory effect" problems. Then NiMH which… avoid that problem, but they do not stay charged. Some cameras have prorietary LiOn "lithium ion" batteries, but that's the exception. My canon powershot a70 works with NiMH and also with normal alkaline batteries, but not for very long in either case. One day I saw the Energizer Lithium battery at Sam's club, and bought a 12 pack for about $16. I am still on my first pack of 4 batteries. These things are so awesome!

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