Most dummy batteries will work as soon as you'll connect them to a USB charger or USB Battery - as long as they provide sufficient Volts/Amps.In this case, though, if you'll connect your dummy battery (Panasonic G85) to the camera, and then to a USB charger, you'll find that . it won't work. The only way to make it work, is to disconnect and reconnect the DC Coupler - then it will work. If you'll disconnect the USB cable from the charger and reconnect it to the charger, it won't work - again, disconnect and reconnect the DC Coupler.The reason? This is the old dummy battery from USB-A, which means - it doesn't know how to "deal" with USB-C well, specially the PD part.If you're looking for a dummy battery for your camera, look for a single solution (which means dummy battery, cable, USB-C port, no DC Coupler, no barrel plugs in the middle of the cable).
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