The phone charger voltage is too high, whether it will break the phone or the battery

If the voltage is too high, it will not stop charging, but will charge faster. However, it is not advisable to use an adapter that exceeds 5V.

iphone5s correct charging tips].

1. The first flush does not have to be charged for 12 hours, it only needs to be fully charged;

2. In fact, it can be charged at any power, and it has little impact on the battery;

3. It is best to have a complete release and charging process once a week, that is, from the red power to the full charge, it is best to achieve a battery run out once a week, and then fully charge.

4. The function of overshoot protection for the mobile phone, but it is still recommended to unplug the mobile phone after it is fully charged, and it is not recommended to charge it for a long time.

5. When charging to 100%, unplugging the charger is the best moment, charging 100% and charging for another hour, the battery power when unplugging the charger is not just 100% full, that is to say, after being fully charged, iphone5s has entered the overshoot protection, has stopped charging, and the next time is only the battery consumption process, so there is no need to charge more.

6. When the power of the mobile phone is too low, you should stop playing with the mobile phone or talking in time and charge it as soon as possible to maintain the life of the battery.

What's wrong with the phone not turning on and the charging tube, if it's broken, it's also a bad power IC.

The output power of the mobile phone charger is too low, if it is used for a long time, it will cause harm to the battery, and the output power of the mobile phone charger is too high, because the charging current is determined by the load, when the charging needs a large current and the charger power is small, it cannot provide a large current, so the battery is not full, and in turn, the high-power charger will not be able to provide enough current.

For example, the nominal charging of the mobile phone is 5V1A, but the output of the charger is 5V2A; This situation is generally not a problem, but it is necessary to ensure that the overcurrent protection of the mobile phone is working properly. Because the mobile phone has overcurrent protection, it will limit charging at the nominal charging current of 1A for excessive current 2A.

Precautions for mobile phone chargers.

The best way to charge your phone is not to charge it for a long time. When the mobile phone is depleted, you should charge the mobile phone in time, and do not wait until the battery level of the mobile phone is displayed as 0 before charging the mobile phone. Otherwise, it is easy to shorten the service life of the battery.

Don't charge your phone for too long while charging. Don't leave your phone charged all the time, otherwise, it will shorten the life of the battery. It is best to keep the battery level of the mobile phone at about 50% to 70%, and when charging, when the mobile phone prompts that the battery is full, remove the charging plug immediately.

Generally has no effect Now the charger is generally 1a2a. If the original configuration of the mobile phone is 2A, it is best to use 2A. Because the charger with 1A may burn out, but *** can also be used.

If the current is too large, it will burn in, and if it is too small for a long time, it will affect the life expectancy.

When the charging current of the charger is too large, it will cause a surge in the heat of the mobile phone and battery, and even damage the parts of the mobile phone, and in serious cases, it will also cause **.

The maximum output current that the charger can deliver at the rated voltage. For example, at 5V, the charger can output a maximum current at 5V. and output power.

If the output is exceeded and the charger is not overload protected, the side voltage will decrease. In serious cases, it is easy to cause overload damage and overheating damage to the charger device, and there is even a risk of fire when encountering a power supply with poor quality or lack of protective measures.

The charging current of the device is determined by the charging control loop of the device. The charging control loop is generally composed of electronic switch, voltage detection, and constant current loop. This cannot be quantified by simple things like p=ui, u=ir, etc.

Because the value of R is not constant in U=IR when charging, the equivalent resistance of R is under the control of the charge control loop in order to keep I constant when the battery voltage changes. is constantly changing, and as the battery voltage increases, r should decrease in order for i to remain constant. You can use 5V, 15A instead of 5V1A charger, this will not damage the battery.

Mobile phone chargers are switching power supplies, which use pulse width modulation, and when the power supply voltage is low, the switching pulse width will increase to maintain a stable 5 V voltage output.

As the pulse width increases, the loss and heat generation of the transistor increase. If the supply voltage is too low, below the nominal operating voltage, the transistor can be damaged, and the charger will be damaged.

If the battery is short of power, it is okay for the string to have a slightly larger resistance, but when the battery is fully charged, it should be disconnected from the charge immediately, otherwise it may charge the battery or damage the charger. This charging method can only be used as an emergency, and the resistance and current should be calculated, and the measurement of the charging voltage is safer.

But the precautions to know:

1. It is possible to charge with a current-limiting resistor, but the premise must be: the capacity of the high-voltage battery is much greater than the capacity of the low-voltage battery to be charged. Otherwise, with the progress of charging, the voltage will also drop, and there will be undercharging, and insufficient charging is easy to damage the battery.

2. Mobile phones, *** and other equipment, the rechargeable battery is generally, and its termination charging voltage is. In order to ensure that the battery can be fully charged, the high-voltage battery voltage should always be maintained, which is not easy to achieve.

No problem! It is the highest voltage of the battery! 5V is the charger output voltage!

The international standard is 5V! The 5V input to the phone will step down to charge the battery! However, it is not the original charger, the output voltage may be unstable, which may cause damage to the phone!

It doesn't matter if it's not original, but the quality must be guaranteed to be good!

Generally speaking, no, today's switching power supplies, the voltage adaptation range is very large, as low as 150V can still work normally, and then the output voltage is low at most, but it will not be damaged.