Check whether it is due to the aging of the charging plug and charging cable, and see if it can be solved after replacement; Check whether the charging environment is overheating; Or because there is a foreign object in the tail insert of your phone, resulting in poor data port contact. Specifically:
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1, charging plug, problematic charging plug easy to lead to slow charging, when we charge the mobile phone, please try to use the original charging head, some inferior third-party charging head due to voltage and other problems, may lead to abnormal charging, if you find that the charging is slow, you can borrow someone else's original line and try again;
2, charging cable, although the USB cable on the market is the same, but the current they support is not exactly the same. If there is slow charging, first change the original data cable and try again;
3, the charging temperature, in fact, the temperature also has a certain impact on the charging speed, in the low temperature environment of the lithium battery low temperature protection mechanism will start, resulting in unable to charge or slow charging speed; In warmer environments, lithium batteries work well. Of course, the hotter the better, the overheated environment will cause the battery scrap;
4, the tail is inserted into the ash, if the above three points are no problem, then you may need to check whether the dust is blocked by the charging tail plug, which is a detail that we are easier to ignore. At this time, just use a paper clip or toothpick to slowly pick up the dust or dirt.