^ I interpreted it as, this is an add-on inverter intended/hoped to be plugged into a conventional faux-lighter outlet. Those are plastic, not metal and ceramic like a real lighter outlet, so can't tolerate the heat of much more than 15A if the contacts were dodgy... plus cost cutting on Ford's part, not to wire and design it capable of 30A+ for the few owners who would make use of that.
There's kind of a gulf, in that someone might want to power a laptop, but power tools, things that heat up, etc, that operate from 110/120V, could easily need far more than 30A through an inverter to reach 110V, considering the output is still under 4A @ 110VAC.
It's just not set up for that, when you consider the alternator may not even have 30A to spare if vehicle is just sitting idling, with the low pulley RPM resulting in a fraction of rated alternator output. They don't want to set it up so that if you are using typical accessories and staying within the design/rated limits, that even with engine running (idling), you'd be draining the battery faster than the alternator can keep up with.
There are at least a couple ways around that (oversized alternator and/or ramping up engine RPM based on sensed voltage both come to mind, or smaller alternator pulley for higher ratio/RPMs), but apparently there just wasn't enough perceived customer demand to get it to happen, plus higher drag from larger alternator, or higher fuel consumption from ramping up idle RPM, are considered *evil things* in this !@#$ green era. Ironic when it's to charge an eBike, but there are a lot of things that don't make sense about solutions posed and mandated made by the green movement... as if free market/customer-choice couldn't decide!
