It did. The entire time I was cloaked I had unlimited energy and proceeded to assassinate 4 guys straight! You still move at the cloaked sprint speed but your energy bar doesn't drain!
I dunno if I stumbled onto something here or if this was already there. Next time I'm throwing on the visor with the cloak to engage full on Predator mode.
If you fire any non-stealth friendly weapon it will kick you back to the visible spectrum like normal, but you can reactivate cloak. Armor WILL NOT ACTIVATE if you activate Maximum Cloak.
Anybody else find/knew about this little jewel?