Fast charge mobile phones can use slow charge. Fast charging mobile phones are only different from slow charging in the charging protocol and charging power size, as long as it is not a three-no product, in fact, any power supply can be charged. It should be noted that fast charging mobile phones use slow charging, charging speed will be slow, there may be a mobile phone fever phenomenon.
2. At present, the main principle of fast charging, from the physical calculation formula, power (p)= voltage (u)x current (i), in the case of a certain battery charging, power marks the charging speed, then there are three ways to shorten the charging time: constant voltage, increase the current; Constant current, rising voltage; Voltage and current increase.
3. High voltage low current mode: In order to increase the voltage, it is necessary to design multiple buck circuits in the charging circuit. The charging process of the general mobile phone is to first reduce the 220v household voltage to the 5v charger voltage, and then reduce the 5v charger voltage to 4.2v battery voltage. There are step-down circuits in the charger and mobile phone circuits, so the charger will heat up when charging, and the mobile phone will also heat up. Heating brings a bad experience and affects the safety of the battery.
4. Low voltage and high current mode: Increase the current, introduce the MCU into the charger circuit and battery circuit, rather than the buck circuit. Under the premise of low voltage and high current, the output of segmented cross current is realized by opening the voltage loop. oppo's vooc flash charge uses a low voltage and high current solution, which not only ensures aviation safety, but also solves the heating problem of mobile phone charging in an unprecedented way. Whether it is the adapter or the phone, it will not heat up when charging.
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Fast charging mobile phones with slow charging appliances will not have an impact, slow charging can properly extend the service life of the mobile phone battery, fast charging generally uses pulse high current charging, fast charging is a charging method that can make the battery reach or close to the fully charged state within 1 to 5h, slow charging is a cross-flow charging, slow charging automatically turns to trickle charging after full charge.
Fast charging phones can be used with slow charging devices. Due to the low power of the slow charger, its charging time can become very long.
In fact, the electricity charged is the same, and it is almost used up in the same time, so there is almost no difference between slow charging and fast charging.
The fast charge of the mobile phone can be used with a slow charger, because the fast charge is that its amperage is relatively large, the charging speed is relatively fast, basically within 20 minutes you can charge the mobile phone, and the use of slow charging appliances, you can still charge the mobile phone, but the charging time can be full in about an hour. Do you think what I'm saying makes sense, guys?
Absolutely, as long as the interface can be connected, it is necessary to charge a little longer.