There's something on the Lightning and iPhone side managing charging too. I wasn't talking about the AC->DC rectifier or USB on the brick. In the end, an iPhone

There's something on the Lightning and iPhone side managing charging too. I wasn't talking about the AC->DC rectifier or USB on the brick. In the end, an iPhone will fail to charge pretty often even if the cable isn't frayed, hence the joke that iPhones are always low on battery.