En P.V. un usuario da instrucciones detalladas de como se lo ha hecho con un powerbank de salida regulable:
Monster batteries: Running the G7 and GX 85 forever on batteries for $40 QD 185-TY Portable Charger 18650 Li-on Battery Power Bank
https://www.amazon.com/gp/product/B01B98J67O
SunLabz[REGISTERED SIGN] 18650 3.7V Rechargeable (4-Pack) Flat Top Battery Cells 3400mAh
or whatever brand...the cheap ones are fake, FYI. Make sure they are flat top.
https://www.amazon.com/gp/product/B01CNVGE4O
Dummy battery
Whatever cable you need, I used 4.0x1.7mm on both ends.
Set the voltage to 8.5 or 9. 8.5 runs pretty cool.
And run you cam for a really long time.
I bought this one for the G7
http://www.ebay.com/itm/111060138054
I have several of these and they are all pretty much the same, the official Panasonic one has a slightly different connector. If you want it sooner spend a few dollars more for one on Amazon or one with faster shipping.
The connectors are cheap you can buy one that hooks into the included cable:
http://www.ebay.com/itm/371018798506
Or you can get or make a cable that has 4.0mm male on both ends to go from the dummy battery to the power pack.
Fuente: http://www.personal-view.com/talks/disc ... r#Item_641