battery life was surprisingly god when you consider that it uses only two a-type cells. Canon claims that nimh batteries Will allow you todo capture approx. 400 shots (lcd on), or 660 minutes of continuous playbak time. Using a single set of 2700 mah cells, y was able todo conclude my tests as well as capture all of my sample pictures and videos at several events without having todo charge the batteries. This makes only having one or two spare sets of batteries more than enough for most Sporting events.