At 1 o'clock on the morning of June 5, Beijing time, the Apple WWDC 2018 Developer Conference was held as scheduled. Although no hardware was released at the conference, Apple laid down a 30W USB-C power adapter in its official website, while the original 29W adapter was off the shelf.
What's the difference between the new 1W 30W charger and the old 29W? I believe everyone is more curious. We got this new product for the first time, and the next release and comparison evaluation will be announced for everyone.
Apple's official website says: Whether at home, in the office, or on the road, the Apple 30W USB-C power adapter allows you to quickly and efficiently charge. This power adapter is compatible with any device that supports USB-C, but in order to obtain the ideal For charging performance, Apple recommends using it with a 12-inch MacBook. You can also use it with iPhone 8, iPhone 8 Plus, iPhone X or iPad Pro 12.9 inches (2nd generation), iPad Pro 12.9 inches (1st generation) , iPad Pro 10.5 inch models used together, make full use of fast charging function. USB-C to lightning cable to be purchased separately.
New 30W Adapter (Models A1882) Price 384 yuan , It is exactly the same as the price of the old 29W (model A1540) that was taken off the shelf, so it was played as a substitute character.
First, Apple's new 30W USB-C power adapter
About the new 30W adapter, specifications for the 5V3A, 9V3A, 15V2A, 20V1.5A, visible up to 4 stalls.
Apple's original 29W, 61W, and 87W adapters have only two or three gears: 29W adapter output is 5.2V2.4A, 14.5V2.0A, 61W adapter output is 20.3V3A, 9V3A, 5.2V2.4A, 87W The adapter output is 20.2V4.3A, 9V3A, 5.2V2.4A.
Therefore, the new 30W adapter is the most complete charger in Apple's history.
Second, Apple's new 30W and the original 29W power adapter appearance comparison
On the left is the new 30W, on the right is the old 29W. Both are exactly the same size, the shape is only slightly different, the main difference is: shell, interface, AC plug, voltage stall and so on.
The 29W housing on the right is integrated, while the new 30W adapter on the left is welded together by two halves. This is consistent with the Apple 61W, 87W adapter.
Zoom in to look at the USB-C interface. There is also a slight difference.
The voltage range is the biggest difference: 30W specification parameters are 5V3A, 9V3A, 15V2A, 20V1.5A, with 4 gears, which is by far the most complete charger for Apple's gears. 29W specification parameter is 5.2V2.4A, 14.5V2.0A, only 2 stalls.
Plug part, 30W text, 29W not.
Third, Apple's new 30W and the original 29W USB-C power adapter comparison evaluation
For the new 30W adapter, the USB PD detection was performed using a ChargerLab POWER-Z KT001 portable tester. It was found to support 4 gears: 5V3A, 9V3A, 15V2A, 20V1.5A, exactly the same as the parameters marked on the manual.
For the original 29W adapter, use the ChargerLab POWER-Z KT001 portable tester for USB PD detection, which only supports 2 gears: 5V2.4A, 14.8V2A.
30W adapter test 13-inch MacBook Pro (2017 models), using ChargerLab Power-Z KM001C portable tester monitoring, charging power of 28.08W (20.02V/1.40A), supports USB PD fast charge.
The 29W adapter tests the 13-inch MacBook Pro (2017 model) and uses the ChargerLab Power-Z KM001C portable tester for monitoring. The charging power is 27.97W (14.73V/1.90A) and USB PD fast charging is supported.
The 30W adapter tests the iPhone 8 Plus and uses the ChargerLab POWER-Z KM001C portable tester for monitoring. The charging power is 13.41W (8.98V/1.49A) and USB PD fast charging is supported.
The 29W adapter tests the iPhone 8 Plus and uses the ChargerLab Power-Z KM001C portable tester for monitoring. The charging power is 13.46W (14.76V/0.91A) and USB PD fast charging is supported.
30W adapter test Nintendo Switch, using ChargerLab POWER-Z KM001C portable tester for monitoring, charging power is 9.46W (14.96V/0.63A), supports USB PD fast charge.
The 29W adapter tests the Nintendo Switch and uses the ChargerLab POWER-Z KM001C portable tester for monitoring. The charging power is 9.50W (14.96V/0.64A). USB PD fast charging is supported.
30W adapter test Huawei Mate 9, using ChargerLab Power-Z KM001C portable tester for monitoring, power is 16.67W (8.97V/1.86A), support USB PD fast charge.
29W adapter test Huawei Mate 9, using ChargerLab Power-Z KM001C portable tester to monitor, power 9.92W (5.1V1.9A), because of the lack of gear, can not trigger USB PD fast charge.
Fourth, summary:
Apple’s original 29W USB PD adapter was first introduced in 2015. At that time, the USB PD specification was relatively immature, so now it seems that the 14.5V charger is not a conventional USB PD gear, and its application scope is relatively limited, such as Third-party non-Apple USB PD devices may have compatibility issues when they are fast charging.
After three years of development, USB PD fast charging has rapidly expanded and formed a complete specification system. It can be seen that the 9V, 15V, and 20V of the new 30W adapter are completely normal USB PD stalls.
Therefore, the iterative update of this adapter from 29W to 30W is the inevitable result of USB PD development trend.
In addition, there was a report The new iPhone, which will be released in September this year, comes standard with an 18W adapter. It is believed that it will be equipped with similar USB PD stalls.
