The manual acknowledges the supplied battery with 1790 mAh capacity volume under normal usage a useful life of about 1 hour. That's pretty much at a one-day trip for capturing video sequences. And in the evening you can the battery yes again aufladen.Trotzdem I thought it quite appropriate for carrying a spare battery for vacation in warmer climes. I was well advised. On the beautiful island of Capri, there was so much to film that you sometimes often pressed the Record pushbutton. And zooming in appropriate views was not too vermeiden.Und behold: After half an hour I was already evidence to change the battery. My decision has paid off at this moment. the replacement battery kept me back good services. Warmer or colder regions but seem to affect the stress on the battery. In order to operate sorglös, I recommend carrying a spare battery.