Will a 5V2A charger be harmful to charge a 5V1A mobile phone?

A 5V2A charger will charge a 5V1A mobile phone and will not cause harm to the mobile phone. Here's why:

Because the rated output voltage of the charger of 5V2A is the same as the rated output voltage of the original charger. Although the maximum output current is different, the actual output current value of the charger during use is determined according to the power of the device being charged. That is to say, within the nominal maximum output current range of the charger, the charger will only output a large current when the equipment being charged needs a large current.

Therefore, even if the charger is powerful, the charging speed is not necessarily fast.

So generally speaking, if you want to charge quickly, use a charger with a large output current, but the problem with this will be that the heat generated during charging increases, if it is a copycat or inferior mobile phone, there is no overcurrent protection or the function is unreliable, it is easy to burn the mobile phone, can I help you solve the problem? If you're satisfied, please give it a thumbs up.,Dear.。。。 Supplementary statement,Here is just to provide you with another platform to find answers to questions,For reference only,The answer is correct or not,The landlord accepts it or not,It's all up to the landlord to decide,There is no standard or not,In addition,Now in the information age,It's easy to find an answer,There are many platforms that can provide answers,If you think it's not suitable,Please don't attack your life。

Dear, your doubts are still not solved? It should be original, but the charger of 2A is not my mobile phone model, the brand is the same, my mobile phone battery is 5V1A, does 5V2A have an impact on battery life? There is a certain impact, someone has done a test, and the actual charging of the 2A charger may be around.

If your battery is of large capacity, such as 2800mAh, it will have little impact on the lifespan, and if it is not greater than 2000mAh, it is still recommended not to use it. So to speak, the capacity is divided by the current, preferably in between. Converted into professional terms, it is to charge left and right, and the battery life is long.

Of course, if the current is smaller, the life will be longer, but the charging time is too long to bear. Converting it to approximately, there is no problem with the general battery and it can be used. The original charger is 5 volts 1 amp, which can be temporarily charged with a 5 volt 2 amp charger, but it is not recommended to use it for a long time, the reason is that because the charging current of 5 volts 2 amps is twice as large as the original charging current, the charging time will be shortened by half, which may cause the battery to be generated or the mobile phone to heat up, which will cause the battery to easily age or damage the power management circuit of the mobile phone.

Therefore, long-term use is not recommended. The main parameters selected by the charger are: output voltage, outgoing current, and output power.

The answer is: Absolutely, but the charging is half as slow, because 2A is twice as current as the 1A charger Note: 2A input of the power bank as long as it is not a fake, the general quality is good, remember to use a good line, if you use a bad line, how can the current not reach 2A Why some people say no, he said that the mobile phone has charging management.

There is no effect and it will not damage the phone battery or charging head

If the mobile phone needs 2000mA current, and the charging head writes "1000mA", the small horse-drawn cart will tire the horse, and your charging head can not meet the equipment, there will be problems, the most obvious is that the charging head is abnormally heated (it has been overloaded at this time), and the fuse is blown out with high-power electrical appliances in the university dormitory.

But if it is reversed, the device needs 1A current, and the charging head writes the output "2A", then there will be no problem, because the big horse pulls a small car, it is very easy, it is worth noting that the current written on the device is the current it "needs", and what is written on the charger is "the maximum current that can be provided".

The 1A mobile phone is connected to the 2A charger, and the actual charger still outputs 1A to the mobile phone.

And there is still a margin.

Now there are several fast charging standards, if the charging head and the mobile phone are compatible, then you can charge quickly, but if it is not compatible with fast charging, then it will be charged at the current corresponding to 5V by default, but the charging speed will be slower. Although the official does not admit that fast charging will shorten the battery life and reduce the battery life, but the individual engine oil that has used fast charging does find this problem, and I am supportive of whether fast charging is good or not.

Because according to the current mobile phone update speed, the speed of changing the mobile phone is faster than the speed of battery loss, and if you really want to continue to use it, it is good to change the battery, and it doesn't cost much, but the experience that fast charging brings us is very worthwhile.

It can be thought of by the ohmic formula. The voltage is determined, the current is determined by the load, and the current is only 2A when the load is ohms, and when the load is ohms, the natural current is less than 2A. So what we are talking about here is the maximum current, the load is less than ohms, it will trigger the overcurrent protection, the current will not exceed 2A, 5V1A is 5 ohm resistance, the voltage is the same, connected to the 2A charger, the current will naturally become 1A, will not violate the laws of physics.

Can be universal. The difference between them is that the current rating is different, and the phone charger of 2A charges faster.

It can't be universal, the maximum output load represented is not the same, 5V represents the voltage of the mobile phone when charging, and the mobile phone charger is a small transformer, which can convert the standard store service into the charging battery required by the mobile phone, which can avoid safety risks, and the charging speed is relatively fast if the current is relatively large.

There is a big difference in the power of the two chargers, the former is 5 watts and the latter is 10 watts. The two can be used universally, as long as the output voltage is the same, it will not affect the mobile phone.

Mobile phone charger 5V1A and 5V2A describe the parameters of the maximum output voltage and maximum output current of the charger, and the main differences are:

1. The maximum output current is different.

The maximum output current is 1A for 5V1A and 2A for 5V2A.

2. The time required to fully charge the same mobile phone that supports 2A input charging is different.

It takes longer to fully charge a 5V1A than it takes to fully charge a 5V2A charger. The time required to fully charge a 5V1A charger is about twice as long as that of a 5V2A charger under the same operating conditions.

3. The output power is different.

The maximum output power of 5V1A is 5W, and the maximum output power of 5V2A is 10W.

The output current marked on the mobile phone charger can only indicate the maximum current that the charger can output, and it can be used within this charging current range.

During the charging process of the charger, the amount of charging current that needs to be output is directly related to the battery power loss, not the charging current that the charger can output. Just like the mains at home, the home is installed with a 40A watt-hour meter, which means that it can allow the electrical appliances below 40A to work normally, if only an 8W lamp is turned on, the current is only about 36mA, the lamp can work normally, and it will not be damaged because the watt-hour meter can pass 40A current.

Again, the mobile phone battery is made of lithium battery, and the control chip in the mobile phone has the function of managing the battery, which will not cause the over-discharge of the battery, and will naturally not make the battery lose power seriously, so that the output current of the charger will not have any impact on the mobile phone battery and the mobile phone.

The effect is that the charging speed will be faster, and the phone will heat up more significantly during the charging process. The battery will not be damaged, but the excess charging current will affect the battery life. (c is the battery capacity, such as 2000mAh battery, long-term charging with excess current will affect the battery life).

The premise is that the phone's internal circuitry does not limit the charging current to a maximum of 1A, otherwise it will have no effect.

For example, the charger is nominal 5V 1A, which means that the output voltage is 5V when the mobile phone is not connected, and the maximum charging current is limited to 1A when the mobile phone is charged.

If the circuit inside the mobile phone from the charging interface to the two poles of the battery does not effectively limit the charging current, use a 5V2A charger to charge the mobile phone with a rated input of 5V1A, at this time, the battery power is low (that is, the voltage at the battery end is low), the charger will charge the battery with a current of 2A, and the output voltage of the charger will be lower than 5V.

The exact amount depends on the voltage at the end of the battery and the voltage drop in the internal circuit of the phone, and the battery will heat up more than when charging with a 1A charger.

As the charging time progresses, the battery power gradually increases, the battery terminal voltage also increases, and the output voltage of the charger also increases. When the charger voltage rises to 5V, the charging current will gradually drop from 2A and continue to charge the battery until the battery is fully charged.

5V2A means that the rated output voltage of this charger is 5V, and the rated output current (referring to the maximum output current under normal operating conditions) is 2A. The voltage is constant (not really, for the sake of your understanding, let's think it's constant) and the current varies depending on the load.

The charger of the mobile phone is resistant to DC 5V3A, which can charge the mobile phone of 5V2A. The lithium battery of the mobile phone takes away the charge and discharge protection board, no matter how large the input current is, it can only charge the mobile phone according to the rated current of the charging protection board. At the same time, the charger has its own adjustment chip, which automatically adjusts according to different batteries.