Be careful, these are not A123 batteries. Even in the ad on the web site they qualify the product description by saying that these are similar to A123. A123 batteries are 3.3 volts not 3.2 volts like the battery in the ad. While these are called Life batteries, technically they are not A123 and if that is what your looking for, you're not buying A123. If you need a technical understanding of these Life batteries, write Steve Anthony at
www.hangtimes.com He has a good explanation of A123 batteries on his web