The 'pro's original battery puffed after its firmware crashed & left it powered on overnight.  The 'pro 7 can't run on USB power like the 4 did so there's been a need for a dummy battery. 

The journey begins by tearing off the label, reveling a metal skin.

Under the metal skin, we have B for battery in a lot of potting compound.

The potting compound breaks off, liberating the bottom.

The top hinges open, revealing the tabs.

The tabs can be knifed off, liberating the brain board.

The brain board has the contacts.  The mane problem is creating a new enclosure.

All lion cameras sit inside another enclosure so the battery door could be removed.  The door isn't removable like on a DSLR.  The most long lived solution is to leave the door open & build the enclosure around it.

Maybe there's a space to grind away part of the door to poke cables through, but it's too destructive for now.

A small hole in the enclosure worked.

The problem is keeping the dummy battery inserted when using the user interface. The screen can't be accessed with camera locked in because there's a cooling fan.

There's no plan to use a pole with a dummy battery & cables running down the pole.  It would only use a dummy battery on a tripod.