In this world full of works and diligent lives. The time we use the mobile has been increased tremendously. To offer the battery that lasts long as per the user needs, the companies came up with the batteries with huge mAh capacities.

Well, the batteries with those giant power ranges also take a lot of time to charge. This would be quite bad if people are in necessity and if mobile eats up a lot of time charging. Fast Charging Technology allow us to charge mobiles in limited time in our busy day-to-day lives. People would love a smartphone that charges in minutes rather than in hours.

In this article, we will discuss the working of the traditional batteries and we’ll jump into the latest fast charging technologies introduced by various companies and their advantages and disadvantages.

How does Battery work?

Let’s start with the very fundamentals.

Fast Charging Technology


Every battery in the smartphone almost works in a very similar manner. Usually, a battery consists of two electrodes one positive and one negative and an electrode that catalyzes the reaction that converts compounds into new substances thereby producing the difference in the charges across the electrodes which results in the movement of electrons from one terminal to other.

The movement of electrons is what we call as current, runs the mobile.

The batteries charge when a current passes through them. higher currents and higher voltages charge batteries faster, but there’s a limit to that. The charge controller (IC) protects against dangerous fluctuations in current.

The controller chip regulates the overall flow of electricity in and out of the battery. Generally, lithium-ion controllers define the current at which the battery charges by measuring the battery’s cell current and voltage and then adjusting the current flowing in. There is a limit to the amount of current the IC (Charge Controller) draws in.

USB Power Standards

VoltageCurrentMax Power
USB 1.05V0.5A2.5W
USB 2.05V0.5A2.5W
USB 3.05V0.5A/0.9A4.5W
USB 3.1 (USB-C + USB-PD)5-20V0.5A/0.9A/1.5A/3A/5A100W
USB Power Standards

The USB power standards are set by the USB Implementers Forum.
There are many versions of the types of USB’s and the latest is USB 3.1 (USB-C + USB- PD) this is a standard called as power delivery (PD) standard which supports higher voltages and currents. The latest standards can deliver the power up to 100W.


No matter what USB-C charger you buy, the fast charge is enabled when your phone is charging in between 0-80% and will stop after reaching 80 per cent.


  • This is inter-compatible among various devices this doesn’t require special cable or charger to work with multiple devices.


  • The top speeds aren’t quite when compared to the other manufacturers.

Qualcomm Quick Charge

Qualcomm Quick Charge

TYPE VoltageCurrentMax Power
Quick Charge 1.0 5V2A10W
Quick Charge 2.0 5V/9V/12V1.67A/2A18W
Quick Charge 3.0 3.6V – 20V (200mV increments)2.5A/4.6A18W
Quick Charge 4.0+ 5V/9V (USB-PD), 3.6V – 20V (200mV increments)3A (USB-PD), 2.5A/4.6A27W (U
Qualcomm Quick Charge

Qualcomm’s Quick Charge is one of the most widely used charging standards on the market. It’s an arbitrary feature of Qualcomm system-on-chip technology like the Snapdragon 855, 845, 835, 820, 620, 618, 617, 430, and others. But the technology isn’t tied to Qualcomm’s Snapdragon processors, any smartphone manufacturer is free to license and implement Quick Charge’s power controller technology. Quick Charge achieves fast charging by increasing the charging voltage, which in turn boosts the wattage.


Qualcomm claims the latest version of Quick Charge 4+ can recharge smartphones to 50% in just 15 minutes. The Quick Charge 3.0 delivers about 50% capacity in half an hour.


  • It is one of the most widely implemented charging standards.
  • Allows backward compatibility with older versions of Quick Charge Technology.
  • Built-in safety features prevent overheating and short-circuiting.


  • Quick Charge 3.0 isn’t USB-PD compliant.

Samsung Adaptive Fast Charging

TYPEVoltageCurrentMax Power
Samsung Adaptive Fast Charging5V/9V2A18W
Samsung Adaptive Fast Charging

Samsung’s Adaptive Fast Charging is exclusive to Galaxy devices like the Galaxy S20, S20+, S20 Ultra, Z Flip, Note10, Note10+, Fold, S10e, S10, S10+, Note9, S9, S9+, Note8, S8, S8+, S7, S7 edge, Note5, S6, S6+, and S6 edge. Unlike Quick Charge and other fast standards, it’s fully compatible with Exynos, the system-on-chip commonly found in international variants of Samsung’s devices.


The speeds are usually higher than normal. The speeds are not mentioned by Samsung.


  • Built into all Samsung devices.
  • Compatible with Quick Charge 2.0.


  • Tends conservative.

OnePlus Dash Charge and Warp Charge and Oppo’s VOOC

Dash Charger

TYPEVoltageCurrentMax Power
Dash Charge5V4A20W
Warp Charge5V6A30W
Oppo VOOC5V5A25W
Oppo Super VOOC10V5A50W

OnePlus licensed Dash Charge and Warp Charge from Oppo. It’s based on Oppo’s VOOC (Voltage Open Multi-Step Constant-Current Charging)flash charge system and is a headline feature in the OnePlus 6T and every other OnePlus phone back to the OnePlus 3. It was rebranded to Warp Charge with the OnePlus 6T McLaren Edition and that’s what you’ll find in the OnePlus 7 Pro, too. Oppo has also developed the much faster VOOC, but it’s only available in some of the phones like the Oppo RX17 Pro.


Dash Charge operates at peak values of 5V/4A (20W), slightly lower than VOOC’s 5V/5A (25W). By bumping the charger’s amperes instead of the voltage, it’s able to achieve a more even distribution of electrical current at higher levels. That’s because of a special wall adapter that modulates the amperage in real-time. There is a microcontroller that monitors charge level and synchronizes with the phone’s circuitry to regulate voltage and current, and a custom-designed cable delivers more comprehensive current while minimizing power fluctuations. Dash and Warp Charge only work with OnePlus phones and with compatible wall adapters.


OnePlus had rated Dash Charge at 60% capacity in 30 minutes. Oppo claims VOOC-enabled phones can charge up to 75% in 30 minutes. When charged the Super VOOC system with the Oppo RX17 Pro it went from 0% to 40% in just 10 minutes.


  • Keeps phones cooler.
  • One of the fastest charging standards.
  • Adapters included with compatible smartphones.


  • Compatible with only related devices.

Latest: Qualcomm announced it’s QuickCharge 5.0

QuickCharge 5.0

Qualcomm on Monday (27 July) unveiled the latest version of its fast charging technology – Quick Charge, the world’s first 100W+ fast charging solution for smartphones which states to charge the device from 0-50 per cent in five minutes.
Quick Charge 5 is expected to appear in commercial devices in Q3 2020. For now, it is supported on Snapdragon 865, 865 Plus, and all the upcoming premium-tier Snapdragon mobile chipsets.
Xiaomi has been confirmed as the first company to launch smartphones with Quick Charge 5 in the future.

Conclusion | Is Fast charging technology worth?

Fast charging technology had changed the way we used to interact with smartphones. Usually, people used to charge their phones for the night and hoped it would last for the whole day at least. With the invention of this technology, people can charge their phones for a short while that would benefit their needs for at least some important hours. Fast charging technology has got its advantages which improved the usability of the devices even though it got a disadvantage of shortening the lifespan of lithium-ion batteries and some other overheating problems but using certified batteries and chargers and cables would get rid of those problems.
So we can conclude that the fast charging technology is worth every single penny.

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