I love when I do that! I have a missing door handle (broken dhc haven't had time to pull it out and repair yet but already pulled the handle: i could still open the door if I pulled hard enough I wanted to eliminate the chance I would destroy the dhc past repair, so I removed the handle). I have many times let the door shut and I have to reach inside to use the inside handle.

You can open the hatch from inside and you can also apply 12v at the B+ under the hood to operate the tailgate.

For future reference (to all readers): when you disconnect the battery, push the latch shut with a screwdriver etc to make it impossible to close the hatch. You won't be able to unlatch until you reconnect the battery. You can put a sheet of rubber or foam over the latch to avoid the nearly inevitable slamming the hatch into a closed latch.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)