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How Does Fast Charging Work? Every Standard Is Compared Here

In the increasingly competitive smartphone market, people thoroughly study all the features a smartphone has, from screen size to CPU, before choosing the best smartphone for them. A newcomer to the coveted feature lineup is fast charging. This technology now enables fast charging through limited downtime in our busy everyday lives. Who doesn't want a smartphone that charges in minutes, not hours?

If only it could be that easy. Standard charging is a complex combination of chemistry and physics, and each has its limits, and incompatibility is a problem. To make matters worse, smartphone makers tend to place confusing labels on their product.

How exactly does fast charging work? Take a deep breath. Our guide to the most widely used wireless charging standards on the market breaks it down at its simplest level. Here is everything you need to know about Magnetic Data Cable Square Head Type USB C Fast Charging, USB Fast Charging, and much more.


Before we dive into the same, let's start with the basics.


Every smartphone contains a battery and each battery supplies power in a more or less the same way.

The cell consists of two electrodes (one positive and one negative) and a catalytic electrolyte reaction that converts a compound into a new substance. Over time, ions - atoms with an insufficient or large number of electrons - form at the electrodes; this encourages the movement of electrons to the negative outer terminal of the battery and sends an electric charge to your phone.

This chemical reaction only occurs once in a rechargeable battery. However, with the rechargeable lithium-ion battery that powers the smartphone, the reaction is "reversible". When a battery runs out, a chemical reaction generates electricity, and when the battery is charged, the chemical reaction absorbs energy.

Fast Charging

Therefore, we found a way to charge and discharge the battery. In order to understand how fast with the U-Shaped USB Charging Cable works, you need to know a little about something called a regulator.

Short Side Note:

Since we'll be talking about volts, amplifiers, and watts as our discussion, here's a refresher. Volt is of course a voltage meter, amp is a current meter, and watts are of course an electric power meter. A common analogy is simply a garden hose: the voltage is proportional to the pressure of the water in the hose; its presence is proportional to the flow rate; the performance is proportional to the amount sprayed into the spout. So watt is the product of volts and amps - volts (V) times amps (A) equals watts (W).

Smartphone batteries are charged when electricity flows through them. Higher currents and voltages will charge the battery faster, but there are absorption limitations. The controller (IC) protects against dangerous overvoltages.

The control chip regulates all current flows into and out of the battery. In general, lithium-ion regulators determine the presence (in amps) at which a battery is charged by measuring the currents and voltages in the battery cells and then adjusting the current input. Some use DC-to-DC converters to convert input voltages, and more built-in fan circuits adjust resistance, including charger input and battery pole, to increase current flow up or down.

Regardless of which Magnetic Data Cable Square Head Type USB C charger you buy, you will have to withstand the hard-coded security restrictions on your iPhone. Fast charge starts when capacity is between 0% and 79% but ends when it reaches 80%.