The difference is the charging speed and the power of the charger.
The difference between 20w fast charge and 66w fast charge is that the charging speed and the charger power are different.
20w Fast charge refers to the power of the charger is 20w, which can quickly charge the phone. The 66w fast charge refers to the higher power of the charger, which can charge the phone faster, and can be more durable when using the phone.
When using the fast charger, pay attention to using the original charger as far as possible, so as to avoid abnormal charging of the mobile phone due to incompatibility, battery damage and other problems.
In addition, the higher the power of the fast charger, the higher the temperature during charging, so it is also necessary to pay attention to prevent overheating.
There's a big difference in power.
The 20W fast charge is usually suitable for devices with small charging power, such as smart watches, Bluetooth headsets, etc., and the charging speed may be slow for high-power devices such as laptops or large-screen mobile phones. The 66W fast charge has more power and is suitable for charging various types of devices, including laptops, large-screen mobile phones, etc., and its charging speed is relatively fast.
On this issue, the main difference between 20W fast charge and 66W fast charge is the charging speed and charging power. The 20W fast charge is faster than the ordinary charger, but it is slower, while the 66W fast charge is able to charge quickly and has higher charging power. Therefore, using the 66W fast charge can charge the device faster and provide higher charging efficiency. However, it should be noted that the use of high power fast charge may have a certain impact on the battery life of the device, so it needs to be used with caution.