The lounges have plenty of outlets. I believe the *A lounge has multi-zone plugs (but don't recall if there are USB ports). The reception desk should have some adapters, if necessary.
(For general info, Amex lounge has multizone outlets scattered about, but several were not working on my last visit. AR has multizone outlets scattered about. I recall that LATAM didn't have multizone outlets, but reception will loan an adapter.)