There is no common factor between them because your smartphone’s manufacturer could choose to boost either the voltage or the amperage, or even both, to achieve higher electrical power. There’s no minimum combo of Volts, Amperes, or Watts to indicate that you have fast charging. Volts measure voltage, Amperes measure the current, and Watts measure electrical power. The USB 3.1 and USB 3.2 specifications support electric current values of up to 5 Amperes, using a voltage that can get as high as 48 Volts and deliver an amazing maximum power of more than 100 Watts, theoretically going up to 240 Watts. The USB 3.0 specification delivers up to 1.5 Amperes of current at 5 Volts and a maximum power of 7.5 Watts. This standard says that USB 2.0 ports must deliver at least 0.5 Amperes using 5 Volts for 2.5 Watts. The common thing between all charging cables for smartphones and tablets is the fact that they all rely on the USB (Universal Serial Bus) technology. Some cables use USB 2 ports, while others use USB 3 ports. The end of the cable with the USB Type-A connector is plugged into the charger or some other charging source. Universal Cable with Micro-USB, USB-C, and Lightning Connectors from Belkin There are even universal cables with all three types of connectors that fit all modern smartphones and tablets, as shown in the picture below. Older ones relied on mini-USB connectors. iPhones use Apple’s Lightning connector, while Android smartphones commonly use USB Type-C nowadays. Modern smartphones and tablets usually have charging cables with a USB Type-A or Type-C connector at one end and various types of USB connectors at the other end. However, they also have one thing in common: fast charging sends more electrical current to the battery, and that makes it charge quicker. The answer is both simple and complicated: there is more than just one fast-charging standard, and all of them are different from the others. Obviously, fast charging is a technology that lets smartphones charge their batteries faster than normal, at least until their batteries reach a certain power charge level.

Are you happy with the fast charger that comes with your smartphone?įast charging is a feature that most smartphones offer, regardless of whether they are premium models or affordable ones.

What happens when you use a fast charger from another company with another charging technology for your smartphone?.

OnePlus Dash/Warp Charge, Oppo VOOC/Super VOOC.

USB-PD (Universal Serial Bus Power Delivery).

How many fast charging standards are there?.

Usb 2 vs usb 3 charging