The first generation of USB Standard (5V/0.5A) was brought up in 1995, then the advanced 2.0、3.0 standards were released afterwards. From that time, most phone charging is based on USB port. With the continuing development of smart devices’ hardware, the endurance of battery has been improving. But due to dependence of smart devices for modern life, fast charging becomes more and more demanding.
Qualcomm, as one of the leading smart chip suppliers in the world, has been making their efforts to improve charging technology. In April 2014, Qaulcomm released the Quick Charge 2.0 technology for Snapdragon chip buil-in phones, the charging solution can offer 5V, 9V, 12V three kinds of voltage. By raising the voltage, the power adapter can transfer more power to smartphones.
Now Qualcomm provides the compatible test for Qualcomm smart devices makers. The test is conducted by a third-party testing authority, all the devices that passed by the test will get a approval and marked as the following logo.
Recently Qualcomm updated its certificated accessories list on its official website https://www.qualcomm.com/documents/quick-charge-device-list And we can find the latest certified chargers:
In this version, we can find that the largest numbers certificated brand is Tronsmart(http://www.tronsmart.com/products/chargers) There are 7 models of Tronsmart quick chargers in the list. More and more brands have released chargers with QC 2.0.
Thanks for the review !
From Quick Charger : http://www.quickcharge30.com/what-chargers-that-support-qualcomm-quick-charge-20