Fast charging is a must have feature in today’s phones. It keeps our batteries topped up through busy days. However, there are a variety of different standards from different companies. Some only work with specific cables and chargers, while others use higher voltages. It can all get a bit confusing, so we’re here to make sense of it.
In a nutshell, fast charging increases the current sent to the battery to fill up its capacity quicker. The basic USB specification only sends 0.5 amps (A) of current using 5 volts (V) for just 2.5 watts (W). Fast charging technologies boost these figures. Huawei’s 10V/4A SuperCharge2.0 produces 40W and Samsung’s 9V/1.7A Adaptive Fast Charging produces 15W of juice. All fast charging services share a common theme — more power. That’s just the basic overview. How a battery actually charges up is more complicated. Before we get to that, let’s look at the differences between all of these fast charging standards in more detail.
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https://www.androidauthority.com/fast-charging-explained-889780/amp/
