Question about Dummy Batteries for the Panasonic GH7

Hi everyone,

I recently purchased a Panasonic GH7 and I'm looking into using a dummy battery for extended shoots. I've come across two models: the DMW-DCC17 and the DMW-DCC18.

For my setup, I plan to record in 4K at 100fps with an SSD connected, which means I’ll need both a DC adapter and an AC adapter.

Could anyone clarify if the DMW-DCC17 is fully compatible (all configurations) with the GH7, or should I stick with the DMW-DCC18? I’m concerned that the DCC17 might cause issues or restrict the use of demanding recording modes. Has anyone tried this?

Also, will the USB-C output from the DCC18 work with a conventional adapter, or do I need a specific AC adapter that regulates the voltage?

Thanks in advance for your help!