Isn t it said that charging so slowly is fast charging?

In the discussion paper, "charging more than 60% within 30 minutes" is defined as fast charging.

This sentence seems simple, but it contains two messages.

First of all, the discussion draft does not have a one-size-fits-all approach, and simply and crudely delineates whether 10W or more than 15W is considered fast charging, but draws a standard for relative speed. For mobile phones with small batteries, maybe 10W charging power can charge more than 60% in half an hour, even if it is fast charging, and for mobile phones with large batteries, maybe 15W charging power can not make it charge 60% in half an hour, which is still not fast charging (I will give a few examples below).

Second, more than 60% of the charging capacity in these 30 minutes refers to the actual amount of power to the battery, not the standard power of the charger, due to the loss of charging, the charger is marked with 5V 2A, which is 10W charging power, and the actual conversion may only be 9W.

To give a few examples, the battery capacity of the iPhone 7 is 1960mAh, the battery is very small, it can use the charging head of the iPad to reach 9W charging power, the voltage of the lithium battery, by the hour = meter, as long as its average charging power can be reached, it will meet the standard of fast charging, from this point of view, the iPhone 7 can barely be said to support fast charging (but you need to buy your own fast charging head).

The iPhone 7 Plus battery is 2910mAh, the battery is larger, and the same calculation is that the average charging power needs to be above to be considered fast charging, and the 7 Plus can only charge 5V 2A with the head of the iPad, so it is not enough to meet the fast charging standard.

And now there are some large-battery Android mobile phones that pursue battery life, with a battery capacity of 4000mAh, for this kind of mobile phone, to reach the standard of charging 60% in half an hour, it is necessary to have an average charging power above it, which is considered fast charging.

Fast charging depends on whether the mobile phone supports it, and secondly, it depends on whether the mobile phone charging cable and charging head support fast charging. Generally, the power of the mobile phone charging head is relatively low, just like Apple's 8, which supports fast charging, but the mobile phone charging head sent is only 5W, which does not support fast charging at all, so it is necessary to look at it comprehensively.

Check whether the charging head is original, non-original has an impact on the charging rate.

Check whether the charging cable is original, if the cable is not good enough, the charging speed will be slow.

Fast charging is generally faster when the power is low, and the more power, the difference is not obvious.

、About the aboveThe phone is fast charging, why is it charging very slowly now? For this problem, first check whether the original charger is normal.

Check the inside of the original charging data cable to see if there are problems such as poor contact(If necessary, a replacement should be considered.)

Check if the battery inside your phone is normal.

Take a look at whether it is the original charger cable, if it is the original charger cable, it may be that the wire contact is not tight. If there are other charger cables around, try to determine if it is a problem with the cable or a problem with the phone's battery.

Is there a problem with your charger, is it fast charging, if it is broken, you can change a charger, 360gan65w fast charging charger, high-power fast charging, find out.

Check if the charger or data cable is not matched.

、About the aboveMy phone is fast charging, why is it charging very slowly now? If you want to solve this problem, you should check whether the original charger is normal.

Check the inside of the original charging data cable to see if there are problems such as poor contact

Check if the battery inside your phone is normal. (If this inspection is necessary, it is best to ask a professional master to test the mobile phone battery).

Through the above checks, if everything is normal, then the phone is still chargingVery slowly,

First, the power of the charger head or wire is too small, and second, the battery should be replaced.

If you are using an OPPO mobile phone, if the mobile phone is charging slowly and the charge is not enough, you can check it according to the following scheme:

1. Confirm whether there is a mobile phone while charging (such as the screen on state), because the charging speed of the screen is slower than that of the screen off, it is recommended to use it after it is fully charged;

2. Confirm whether to use the original charger and data cable, non-original charger and data cable may cause unstable charging voltage and current;

3. Confirm whether the phone is hot or hot, if so, it is recommended to restart the phone and wait for the temperature to drop before charging (due to the high battery temperature, the phone will be protected by current limiting);

4. Restart the phone or plug it in again;

5. Try to replace the charger and data cable;

6. Update the mobile phone system version;

7. Confirm the ambient temperature of the mobile phone, the mobile phone is charged in an environment where the temperature is lower than 15 degrees or higher than 35 degrees, due to the deterioration of the activity of the lithium battery at low temperature or high temperature, in order to protect the battery, the charging current will gradually decrease, and the charging is slow or undercharged, it is recommended to clean up the background with one click, reduce the use of the mobile phone, and then get it to the environment with a moderate temperature (15 degrees to 35 degrees) to charge. Shouting.

8. If the problem still cannot be solved after the above investigation, it is hard to bring the purchase invoice, warranty card and mobile phone to the OPPO customer service center for testing. (OPPO official website "Service" outlets check Zheng Da waiter inquiry and appointment).

There may be the following reasons for slow phone charging:

1. Slow charging when the standard charger and data cable are not used:

Products that support Super Fast Charging must use the standard Super Fast Charger and the standard data cable to perform Super Fast Charging, and use other models of chargers and data cables for normal charging or non-charging. If you are using a non-standard charger cable, please replace it and try again.

2. Charging slowly while using it:

Part of the current input from the charger needs to offset the power consumed by the mobile phone hardware such as the screen when in use, resulting in a decrease in the current used to charge the battery, and the charging speed will be slower.

Increase efficiency:

Match the appropriate charger.

1. When using a mobile phone charger, it is best to use the original, of course, the original of some copycat mobile phones does not meet the specifications, mainly to see whether the voltage and current of the battery and the voltage and current of the charger meet the requirements.

2. Take a 2000 mAh battery as an example, the displayed voltage requirement is, then you must match the corresponding charger according to this requirement, otherwise the charging speed will be slow.

3. If the charger needs to meet the battery needs, then the general data cable must also be picked and selected, especially when connected to the computer for charging, do not use too thin data cable, there will be loss, and the charging speed will be very slow.

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Regarding the problem that both fast charging and slow charging are slow, I think there are several main reasons:1Insufficient charger power:

If you are using a charger that is not powerful enough, then the charging speed will be slower. It is recommended that you use an original charger or a charger that meets the standards. 2.

Loose or damaged charging cable: If the charging cable is loose or damaged by the stool, it will also affect the charging speed. It is recommended that you check whether the charging cable is normal and replace it in time if there is a problem.

3.Aging phone battery: If you are using a phone battery that has been around for a while, then the life of the battery may have reached the end of its life.

An aging battery can cause slower charging. It is recommended that you replace the battery. 4.

Poor charging environment: If you charge in a high temperature or low temperature environment for Frank Travelers, it will also affect the charging speed. It is recommended that you charge in a suitable environment.

Also, I would like to add that the difference between fast charging and slow charging is the power of the charger. The fast charger has a large power and can quickly charge the phone, but it will also have a certain impact on the battery life. Slow chargers are less powerful and charge slower, but have less impact on battery life.

Therefore, when choosing a charger, you need to choose the right charger according to your needs and the situation of your mobile phone.