Even if the compatible charger can provide the same current and voltage as the original charger, there will still be differences in practice:
1. Interface resistance. Compatible with the charger outlet, access to the phone connector, if the use of inferior copper, the surface is relatively easy to oxidize, will lead to increased resistance and even poor contact. Since the charging voltage is only 5V, 1? The 1V voltage will be divided, resulting in the real input voltage of the phone is only about 4V, and the charging speed will certainly be greatly reduced.
2, the quality of the charging line is poor, the resistance is large. This is very common, and the principle of influence is the same as the first point.
3, compatible power supply ripple is too large. Since the current charger is a switching power supply, if the filter capacitor fails or the capacity of the inferior capacitor is insufficient, it will lead to a large power output ripple, this power supply with a multimeter to measure the voltage is basically normal, but the oscilloscope measurement will find that a lot of high-frequency alternating current (in fact, pulsating direct current) components, the real direct current is obviously insufficient. For the problems you encounter, I think first consider changing the charging cable, recommend a treasure called \"green league\" or \"green union\" charging cable, the price is much cheaper than the original line, but it is a gold-plated joint, oxygen-free copper wire, sales are large, you can try, should have a good effect. The line is so cheap, don't save anything! In addition, poor contact may lead to abnormal heat and high temperature of the interface (which accelerates oxidation, a vicious cycle), and accidentally burn the bed or sofa.