iphone wireless charging is slow, the reasons are as follows: because to take care of the cost, but also pay attention to security. Therefore, after testing and evaluation, it was finally determined that 7:5W is a safe and cheap solution for the new iPhone to achieve wireless charging, which is certainly much slower than the 15W wireless charging that can be supported now.
First replace the charger or test with other equipmentMake sure the charger works, and be careful not to put anything between the iPhone and the charger. If the iPhone does not charge or charges slowly, and the iPhone has a thick protective case, metal protective case, or battery case, remove the protective case or battery case first.
This condition is usually caused by the fault of the phone charger. If the actual output voltage of the mobile phone charger is lower than the rated output voltage, then during the charging process, when the battery voltage of the mobile phone rises to a certain value, but does not fully charge the battery, the current voltage of the mobile phone battery is transfused with the chargerAlthough not open at the same time, the effect will be good.
2, low charging efficiency Since it is for mobile phone charging, charging speed is of course the first, even if you can do the application of "wireless", but for the most basic requirements of charging speed can not be reached, then the experience will probably be a discount.
3, low efficiency: energy storage and delivery efficiency is less than real contact. Slow charging speed: Due to low efficiency, the charging speed is slow at the same input power. Although wireless charging can be unplugged, the distance between the phone and the charger is very small. But the loss of electromagnetic energy is still notSmall, the power received by the general mobile phone is about 75% of the power sent by the charger.
Wired fast charge, half an hour to 61%. 0-100 takes only 63 minutes. Wireless flash charge to 55% in half an hour. 0-100 takes 74 minutes.
Millet mobile phone has a special situation, the phone charger is not configured with the phone, but needs to be purchased separately, but many people for budget considerations, there is noThere is the purchase of a special millet charging head, but the use of other charger heads to mention that because it is not the original configuration, the charging time is extended.
The upgraded version of the 20w Xiaomi wireless charger can be fully charged in less than 2 hours, supporting a variety of scenarios, less the shackles of traditional charging, so that charging is more free. However, Xiaobian believes that with the usual situation that everyone likes to charge and play games at the same time, it is still relatively weak, because the mobile phone can not leave the wireless charger in the process of wireless charging.
Reduces heat loss and ensures charging efficiency. Lei Jun stressed that Xiaomi's innovation in the field of wireless chargingThe new started with 5W, and is committed to reducing costs, giving the price of 99 yuan to high-end features. The Mi 9's 20W wireless flash charge is the world's first, and can be filled in 90 minutes, even faster than many wired charges. Xiaomi insists on allowing users to enjoy this convenience without pressure, and promotes wireless charging into a more practical stage through the 99 yuan charging board.
The new generation of Mi 9 supports wireless charging, charging power up to 20W. According to Xiaomi's official data, the Mi 9 can be fully charged in one and a half hours after using 20W wireless charging, which is faster than the wired fast charge of the Mi 8. So millet will be 20W Wireless charging is called "wireless flash charging". At the same time, the Mi 9 has passed the German Rheinland YUV safety fast charging system certification, which has greatly improved the charging safety.