1. Fast charging refers to a charger with a charging current greater than 3A, while the charging current of a 15-watt wireless charging is 3A, no greater than 3A, so it is not fast charging.
2, the difference between the above car wireless charging 10W and 15W is: 10W wireless charging and the 15W with QC0 fast charging.
3, the charger says 15W does not mean the actual use of 15W charging, but also depends on whether your phone is supportedWith such a large power, the phone and the charger will negotiate the charging power before charging, and if the phone does not support it, it will also use a relatively small power charging.
4, with wireless charger 15 watts. Samsung's s9 phone supports up to 15 watts of fast charge, it can use two charging specifications, one is 5V/2A but only 10 watts; The other is 9V/67A, which is 15 watts, and using the latter is fast charging. The s9 uses the QC0 fast charge protocol, which is an older one, and the current Samsung's new mobile phone S20 supports QC0 up to 25 watts of fast charge power.
1, different Wireless charging fast charge? , wireless charger will have a loss when charging, the loss is between 30-40 percent. So the ordinary charger is faster than the wireless charger. There are already fast chargers and fast wireless chargers, but the results are the same. For example, the fast charging Samsung S8 takes 90 minutes, then the fast wireless charger takes 190 minutes, which is the result of my own actual testing.
2, different. Moreover, according to different wireless charger manufacturers now, the current and frequency are not the same. (The students themselves bought one online, it is said that the speed is relatively fast. The way to make it is to connect the metal pole of the wireless charger receiving device to the metal sheet of the charging electrode of your own phone, and then drag the wire outside to receive from the outside.) The heat is caused by the large current in the charger, which leads to obvious heat.
3, hello Wireless charge can fast charge ! Using the original charger is faster, and wireless charging is slowerWith the progress of wireless charging technology, the 20W wireless flash charge equipped with Millet 9 has shown good strength. Lei Jun confirmed in Weibo that the wireless charging speed of the Mi 9 did exceed the ordinary 18W wired fast charge, and proved this view by comparing videos, taking the Mi 8 as the experimental object. In the actual test, after the two mobile phones ran out of power, the Mi 9 charged to 100% after 4 minutes, while the Mi 8 took longer.
2, Apple wireless charging is not fast charging. Wireless charging itself is not efficient, and when charged normally with Apple's original wireless charger, it is easy to make an Apple phoneHeat, if coupled with fast charging, the phone will produce more heat, so there is a certain risk, so, Apple mobile phone under normal circumstances do not fast charge, do not use wireless charging, wireless charging is just a empty function, not very practical.
3, the convenience of wireless fast charging does not bring a significant increase in charging speed, but may be slightly lower than wired fast charging. The power output of the wireless fast charger to the wireless base is not the final output power of wireless charging, but the input power of the wireless charger. The wireless charger installed on the new energy vehicle has limited charging speed, which may be due to the external charger andCompatibility issues between on-board charging systems.
4, wireless fast charge is not very fast, nor very slow. Wireless fast charge is much faster than wireless fast charge, and slower than wired fast charge. The power that the charging head wired outputs to the wireless fast charge base is not the wireless fast charge output power but the wireless fast charge input power. Charging time of more than 2 hours of wireless fast charge, not as fast as the wired fast charge of 1 hour and 30 minutes, is not fast charge. Unexpectedly, the wireless fast charging efficiency of 60% when the 18W is charged for 2 and a half hours.
5, in the charging speed, wired fast charge is definitely more than wireless fast charge. Candidate numberAccording to reports, the current wired charging has reached the highest 50W mass production charging, Huawei 40W fast charge compared to OPPO 50W fast charge, and the fast charge power of other mobile phone manufacturers is basically more than 18W. Even Apple, the slowest charging smartphone, also supports PD fast charging. Recently, Xiaomi and vivo have more than 100W of super charging power (not yet mass-produced).
6, first use a wireless fast charger to charge it, the test found that the wireless charger input power can reach 107W. Then take down the phone and use the PD charger for iPhoThe ne11 Pro Max starts the wired fast charge, and it can be seen from the tester that the current power is 26W.