Can you get clarification as to whether or not this includes USB charging adapters?
(The sort that have only female usb ports as input, not A/C outlets.) Most good models have two outlets that draw at least 2 amps, which are suitable for tablets, and a couple more that draw 1 amp, which will normally recharge a phone.
A high-quality USB adapter can charge 4-5 portable devices on a draw of under 6 amps, which is the normal draw for one plug on a 110v. outlet on a DCL ship (according to verbiage in DCL's special needs information, the outlets are 12 amps each.)
If it's not a extension cord or surge protector then it shouldn't be affected. The device your describing is a charger.