Theoretically speaking, the shorter the length of the data line, the smaller the loss of the wire, the longer the length of the data line, the greater its resistance, and the same charging speed will be relatively slower, on the contrary, the shorter the data line, its The smaller the resistance, the faster the charge will be. So today, I will personally test the strength of the data cables of different lengths!
Does the length of the data line have a big impact on the charging of the mobile phone?
The test results are as follows:
(1).1 m original data cable: full charge time — 2 hours and 5 minutes
(2). 1.68 m lucky red data cable: full charge time — 2 hours and 20 minutes
(3). 2 m zinc alloy data cable: full charge time — 2 hours and 26 minutes
From this point of view, the length of the charging line does have some impact on charging, but the impact does not seem to be significant. In addition to data cables of different lengths, plug-in boards, charging treasures, and computer cases, will these devices that we often use to charge affect the charging speed of mobile phones? Next we conduct the second test;
(2). The next day, I borrowed another power bank to charge three Apple mobile phones with zero power — [DELL computer interface Feat. 1 meter original data cable]; [power bank Feat. 1.5m lucky red data cable]; [2A power strip Feat.2m zinc alloy data cable]. Today, in another test method, the three 6 plus batteries are all discharged. Let’s see how much power they get within 60 minutes?
The current of the power strip is generally 2 amps, the current of the power bank is generally 1 amp, and the current of the computer USB socket is relatively low, only 500 mA. The test results are as follows:
The test results are as follows:
(1). 1 m original data cable feat. Computer interface: charge to 40%
(2). 1.68 m lucky red data cable feat. Charging treasure: charge to 45%
(3) .2 m zinc alloy data cable feat.2A plug board: charge to 52%
It can be seen that when charging, using a 1A or 2A charging source will have some impact on the mobile phone, but the difference in speed is not big. On some high-end smartphones, because there is a charging current limiting chip on its motherboard, this chip will limit the size of the output current, so instead of outputting a current of 2 amps, the phone will receive all 2 amps. current.
Do you understand?