Installing a fast charge can improve the charging speed of the mobile phone, but it increases the charging current, which may have a certain impact on the mobile phone battery. If you choose a regular brand product suitable for the mobile phone model, and operate in accordance with the correct installation method, installing fast charge is a more reliable choice. However, it is necessary to pay attention to choosing regular channels to buy products and avoid using inferior products, so as not to affect the safety and normal use of mobile phones. In addition, the use of the fast charge function for a long time may also exacerbate the aging speed of the mobile phone battery, so it is necessary to operate carefully during use, and to control the charging time and frequency reasonably as needed.