The battery is back on the camera something out (plain, has indeed a larger capacity than the Panasonic battery that comes with the purchase of the camera). But that does not bother, on the contrary: The battery is the freehand films again added stability, because the thumb of the right hand rests on the battery and supports the camera in addition. The Record button is still easily accessible.
Battery life in the different modes:
Photo Mode: 3:22 hours
Video mode: 2:47 hours
Consider mode: 6:24 hours
Conclusion: The best deal that you can do!