Mercon LV in our differential & 1-speed gear assembly, yep. LV stands for Low Viscosity, so hydrodynamic drag friction is low.
I changed the Mercon LV in a C-Max after I noticed it was running just a few degrees higher than others were getting (not much hotter), and I was able to put in MORE Mercon LV than what the factory had under-filled it to! It was OK how low it was, still lubricating adequately, but when I followed the drain & fill instructions, it took more than what I drained out. And it ran cooler. It was not over-filled since there was a top level opening to check on it, the same thing most differentials have, top level check & fill plug, and bottom drain plug.
If the same Wayne MI factory where both the C-Max & Ford Focus Electric (FFE) was made also under-filled our FFE, it would run a little too hot I guess. Mine was replaced under a recall a couple of years ago, so I hope the technician refilled it correctly. I've never checked it. Probably should though.
It might be a good idea to change out the fluid at 30,000 miles or so, to get iron particles out, and then never change it ever again.
A magnet in there, if it has one (probably does), should take care of iron particles though, so most folks don't change theirs.
I saw a picture of it. Looks typical, with a low drain plug & higher fill plug. The manual (thanks Heima) says you'll need a suction gun but maybe you could just jack up one side of the vehicle a little and drain most out anyway, no suction gun required.
Safety: Always use multiple jack stands, be careful. Use redundant supports to make sure the 3,800 lb FFE doesn't crush u.