Our preliminary testing of the iPhone 6 and iPhone 6 Plus has revealed that both devices are capable of using 2.1-Amp power under certain circumstances, despite shipping with lower-powered 1-Amp USB Power Adapters shown here.
When connected to a Mac running OS X Yosemite, both models reported drawing 1600 mA of extra power, in addition to the base 500 mA used by the USB standard, suggesting that the new models can be charged more rapidly when using a higher-current power adapter or newer Mac. With 2.1-Amp power, the iPhone 6 Plus appears to be capable of recharging to 90% in around two hours, a number that will be markedly longer with the slower included 1-Amp adapter.
