The 120volt receptacle baffles me? Unless it has a converter it would just put out 12 volt dc and whatever amps the alternator is rated for.It is interesting to see the differences between the two chargers, one has a 12/24 volt switch and leads with clamps like jumper cables, the other has an ammeter and the plug for the Lear jet. It also has what looks like a standard 120 volt cord receptacle but appears to be wired directly to the alternator. So many changes in such a short time.
Mark