Is the data cable connected to the mobile phone or the plug first?

Maybe when you charge your mobile phone, you don't care which one you pick up first. You usually think about which one you pick up first, and you don't find anything different. To solve this problem, we need to understand the concept of "surge", which means that the voltage exceeds the normal voltage in an instant. When we connect the plug of the data line to the socket, this kind of surge will occur, so if we connect the mobile phone first, then the plug will generate surge.

This surge is harmful to mobile phones. It may be difficult for us to find the effect of this kind of harm in a short period of time. This is because there are two kinds of hazards of surge. The harm to mobile phones is cumulative, and the direct embodiment is that the service life of mobile phones may be shortened. So the right access method is to connect the plug first and then plug in the mobile phone, but at present, there are many anti surge plugs in the market that can effectively avoid the harm caused by the surge to the mobile phone.

In a word, whether your mobile phone charger has the function of anti surge or not, it is not wrong to connect the plug first and then the mobile phone. This is a habit we usually use in the process of mobile phone use. In addition, after charging the mobile phone, we'd better unplug it first and then unplug it, which can reduce the harm of charging to the mobile phone!