The only thing that bothers me a bit, is that the battery pack (also included the "small" battery) in the battery compartment of my HF G25 slightly wobbles. Whether this is due to the camera or to the battery, I can not say yet. What, however, does not affect functionally.
The battery size is, of course, with capacity limited, at least at the HF G25 precisely the seeker must be completely herausgezoegen. I think it's not as bad as you can so "create" the jaws on the battery.
The controls for the HF G25 to the battery around, remain fully accessible.