For example, the Anker PowerPort Atom III is 35 percent smaller than the adapter Apple supplies with the 13-inch MacBook Pro, despite delivering the same 60-watt charge. That’s due to the newest charging tech, gallium nitride (GaN), which allows for adapters that are significantly smaller and more power-efficient.Ĭharger makers have already begun replacing the silicon inside power adapters with gallium nitride, and the size difference is significant. You’ll also want to make sure the charger supports USB Power Delivery, which any third-party charger almost certainly will do.Īpple’s chargers have always been light, small, and portable, but some third-party adapters make them seem downright bulky. Quite frankly, it’s harder to find one that doesn’t than one that does, but you’ll want to make sure you’re at least getting the bare minimum to allow for maximum fast charging. So you should get a USB-C charger that’s capable of delivering a 20-watt charge. You can fill up about 50 percent of an iPhone 12’s battery in about 30 minutes with the right adapter. That was fine for the iPhone 5 and earlier, which didn’t support fast charging, but the newest iPhone 12 models are capable of working with chargers that handle up to 20 watts. For years, Apple supplied “good-enough” 5-watt chargers in the iPhone box, which take about 2.5 hours to fill up your iPhone. The most important thing to consider when buying a new charger is the amount of wattage it will provide to your device. It works with the iPhone 12, but settle in, because the charging will be slow. You probably have Apple’s 5-watt charger.