I have tried to carefully read and understand all of the posts above. I want lots more power to be off the grid for up to four days to take many photos and shoot video. I want to avoid solar. I have a Panasonic FZ1000. I am soon going to have a DCC8 Panasonic coupler. I have been searching for answers on whether I could use a battery like this to power my camera. As with the other posters here it takes a 7.2v battery and the AC DC adapter shows 8.4V. It would appear from these postings that the 9v power source is not going to fry my camera. I am a bit concerned about the polarity of the plug on the panasonic dcc8 however. I got information from a regular poster on DPreview who told me that the polarity was pin+ / barrell-. I think I am reading here that it is the opposite. I tried with NO success to get information from B&H and from Panasonic as to polarity and size of this coupler connection with zero success. Now I am getting contradictory information - Yikes. I don't want to fry my camera. Will the polarity of the Anker charger be pin+ / barrell- ?
