Why do mobile phones now use built-in batteries?
Nowadays, mobile phones seem to have become "fast-moving consumer goods", and the replacement is too fast. Chao Simu wanted to buy a high-end machine, and it didn't take long for a higher-end machine to appear. However, we will also find a problem. Since the Apple mobile phone introduced the built-in battery of the mobile phone, the back cover can no longer be opened. In the past, when the mobile phone was detachable, if the mobile phone crashed, we only need to open the back cover and pull out the battery, and then install it, and it can be restarted immediately. Such a simple and convenient operation, why is it not popular now?
Many people speculate that this may be the promotion of power banks (mobile power banks) by some mobile phone companies, which has also caused the once universal charging to be useless now. However, in addition to some brands that have power banks, many major brands do not have these products. It can be seen that the built-in battery of mobile phones is not made for power banks. What is the reason?