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Most of the phone releases nowadays come with quick charging technology. How do fast chargers work, and Is it safe to use?

Fast charging has become an essential feature on Android phones. Nowadays mid-range phones also come with quick charge support. From smartphones to laptops, manufacturers are giving “Fast Charging”, technology to us but what does it really mean? Fast Charging technology introduces in the market to save the time of the customers. Without fast charging, we'd have to wait for a long time for our phones to charge up.

As there is huge competition in the market and if companies want to sustain in the market then they have to keep up to date in all fields. So Companies present this technology to their devices 

UNDERSTANDING FAST CHARGING.

The basic components of charging are amperage, voltage, and watts. Amperage (or current) is the number of charges flowing from the battery to the connected device, while voltage is the strength of the electric current. Multiplying volts by amps gives you wattage, the measure of total power. To understand it in simple words take a common comparison used of a watering hose. 

CREDIT: belkin.com

Amperage (or current) is the hose width, voltage is the water pressure, and watts is how much water is coming from the hose. To make a device charge faster, most companies either boost the amperage or alter the voltage to increase the amount of potential energy. 

HOW DOES FAST CHARGING OCCUR?

Charging occurs in two phases. In the first phase, a higher voltage boosts the charging rate. Fast charging chargers leverage this phase to increase power flow. Once the battery has gained most of its charge, the charger will decrease voltage to preventing overheating or overcharging, ensuring our smartphone and charger are both safe.

THE CHARGING PROCESS CAN BE DIVIDED INTO THREE PARTS:-

• Constant Current: Voltage increases towards its peak, while current stays constant at a high level. This is the point where a lot of power is quickly transferred to the device.

• Saturation: This is the state where the voltage has attained its peak and current falls down.

• Trickle/Topping: The battery is fully charged. In this state, the power will either gradually trickle in, or will systematically charge a low "topping" amount as the phone consumes battery.

TYPES OF FAST CHARGING STANDARDS.

The most prevalent types of fast charging standards are USB Power Delivery (or USB-PD) and Qualcomm Quick Charge. In addition to these, there are OnePlus Dash Charge and Warp Charge, TurboPower, Adaptive Fast, and many more. Many of these are based on Qualcomm Quick Charge and have been rebranded for marketing purposes. Similarly, Apple uses USB-PD standards in its devices.

APPLE FAST CHARGING: 

Apple uses USB Power Delivery for fast charging and. To get speeds, however, you need to use at least an 18W adapter with a USB-C-to-Lightning cable. A more powerful adapter won’t harm your phone, but it’s unlikely to help. 

OnePlus Dash Charge and Warp Charge:

Dash Charge and Warp Charge are authorized to Oppo, and work the same as Vooc, bumping up amperage to 5V/4A to achieve an output of 20W. The OnePlus 8T will support Warp Charge, an upgraded fast charging technology that enables 65W charging speeds. It also means that the OnePlus 8T can be fully energized in below 40 minutes.

Qualcomm Quick Charge:

Quick Charge 4+ tapering the voltage range while elevating up the amperage. It grants 5V at between 4.7A to 5.6A or 9V at 3A. Quick Charge 4+ devices use USB-C ports and are acquiescent with USB Power Delivery. They also have a second power management chip, providing up to 28W of power without overheating. 

The brand-new Quick Charge 4+ has a maximum power output of 100W. It can fully recharge a 4,500mAh battery in just 15 minutes. It will initially be supported on Snapdragon 865 chipsets and upcoming premium Qualcomm processors.

Quick Charge 3.0 dynamically increases the voltage from 3.2V to 20V. That means, probably phones with a 3,500mAh to 4,500mAh capacity can charge about 80 percent in just 35 minutes when the battery is drained. Quick Charge 3+ brings similar charging speeds to less-expensive chip-sets.

IS FAST CHARGING SAFE?

Because these technologies enable our smartphone to charge faster than standard charging speeds, phone and charger may become hot while charging. To ensure it is always charging safely, we should use high-quality chargers and cables that have all appropriate certifications. A fast charge is as safe as standard charging when using fully certified accessories.