We already knew the iPhone 6 and iPhone 6 Plus both ship with higher capacity batteries than previous iPhone models did, delivering longer battery life. But it also seems the two new Apple handsets can get a quicker recharge when they need it via an iPad charging adapter in the place of their supplied iPhone adapters.
According to preliminary tests using a Kill-A-Watt device and OS X system information, the charging profile for the iPhone 6 and the 6 Plus match that of the iPad, allowing them to charge using 2.1A. Unlike earlier iPhone models which would only draw 5W regardless of the charger being used, the new phones are capable of drawing up to 12W, allowing them to charge at a faster rate. Early feedback from owners suggest the larger iPhone 6 Plus can charge fully in approximately two hours from an iPad adapter.
The iPhone 6 and 6 Plus are shipped with the standard square 1A/5W charging block that previous iPhone models have included. However, iPhone 6 and 6 Plus owners may also use the 2.1A/12W charger from the iPad or the high-power USB port of a newer model Mac.
As always, be careful using a third-party adapter, and make sure it’s approved for use with your device.