The development of fast charging technology has greatly improved the charging speed and battery life of mobile phones. What we often call 66W fast charging and 120W fast charging usually refers to the fast charging technology supported by mobile phones or other devices, where the number represents the amount of charging power in watts (W).
An important feature of these two charging technologies is "fast charging".They are all capable of charging a device in a very short amount of time, and fast charging technology greatly reduces the time required to charge compared to traditional 5W or 10W chargers.
120W fast charging means that the maximum output power of the charger reaches 120 watts, which belongs to the more advanced fast charging technology. Using a 120W charger, you can theoretically charge your phone from 0% to 100% in 15 minutes to 20 minutes, of course, the actual charging speed will be affected by a variety of factors, such as phone model, battery capacity, charging technology, etc.
66W fast charging refers to the fast charging technology with a maximum output power of 66 watts for the charger. Although it is lower than 120W, it still belongs to high-speed charging technology. With a 66W charger, it is theoretically possible to charge your phone from 0% to more than 70% in 30 minutes (the exact charging speed will vary depending on the phone model, battery capacity, and charging technology).
Is it true that the higher the number, the better? Is 120W fast charging necessarily better than 66W fast charging? The answer is not necessarily, because charging speed is not the only consideration, but also compatibility, usage scenarios, and other issues that need to be taken into account
Not all devices support 120W fast charging. If your device supports up to 66W fast charging, then switching to a 120W charger won't increase the charging speed.
While current fast charging technologies are equipped with a variety of protective measures to ensure safe charging, long-term charging at very high speeds can have an impact on battery life. Charging and discharging a battery is a chemical process, and high-power charging can accelerate battery aging.
120W fast charging is of course a more suitable choice for situations where rapid charging is often required, and for scenarios that only charge at night and are not in a hurry to fully charge in a short time, 66W fast charging is completely sufficient.
Higher power fast charging technologies may require specific chargers and charging cables, which can lead to higher costs. When choosing a device for 120W fast charging, you may need to consider the compatibility and additional cost of charging accessories.
To sum up, I personally recommend:
For those who often need to go out for work or travel and need fast charging to ensure that their devices are always availableIt is recommended to choose a 120W fast charging device;
For deep gamers who have high requirements for charging speed and efficiency, 120W fast charging equipment is more in line with their needs;
For ordinary daily users who mainly use at home or in the office and do not have high requirements for charging speedDevices that support 66W fast charging are enough to meet daily charging needs and better protect battery health. Fast charging of mobile phones