Airplanes with USB outlets

[karebear06]

Does anyone know if Delta Boeing 777-200LR have USB outlets in all of the economy seats? We are also flying Delta Airbus A330-300 and 76W. I'm just wondering if I need to purchase a portable batter for my iphone.
Thanks

 

[DebbieB]

Does anyone know if Delta Boeing 777-200LR have USB outlets in all of the economy seats? We are also flying Delta Airbus A330-300 and 76W. I'm just wondering if I need to purchase a portable batter for my iphone.
Thanks

It does show AC Power on 777 in some economy seats:
http://www.seatguru.com/airlines/Delta_Airlines/Delta_Airlines_Boeing_777-200ER.php

The others it depends on the model and your seat:
http://www.seatguru.com/airlines/Delta_Airlines/fleetinfo.php