The iPhone 1 and iPhone 7 Plus are very different when it comes to the battery and charging methods. The iPhone 1 has a smaller 1,400mAh battery size, but bigger 30-pin dock charger, while the iPhone 7 Plus provides a hefty 2,900mAh battery and uses the much slimmer Lightning Cable.What's crazy? The iPhone 1 had a bigger battery size than the iPhone...