The label on the Phantom 3 battery packs shows a nominal voltage of 15.2 volts. I decided to check the voltage on three packs - all were freshly charged with the stock charger and the charging hub. Using two different Fluke DVMs I get 17.1 - 17.2 volts off the main connector. Now these are packs that have had no real load on them (just whatever it takes to start the blinkies). Any thoughts?