The biggest difference between fast charging and slow charging of mobile phones is that the charging time is different, but fast charging of mobile phones has a certain impact on the battery, long-term use of fast charging will cause battery damage, so time permits, it is not recommended to use fast charging of mobile phones for a long time, slow charging of mobile phones is normal charging, which is the safest way to charge the battery of mobile phones. Therefore, it is still recommended to use the slow charging method to charge the phone