Recently, EU countries voted on a bill on battery replacement for electronic products such as smartphones, laptops, and tablets. The bill was ultimately passed with 587 votes in favor, 9 votes against, and 20 abstentions, with an overwhelming majority in favor.

This means that the removable battery of the phone may be returning. However, nowadays the vast majority of smartphones only use enclosed batteries, which cannot be replaced by users themselves. So, why are mobile phones no longer using removable batteries?

Firstly, a more aesthetically pleasing design is one of the main reasons for using enclosed batteries. A detachable battery requires a battery compartment cover and battery interface, which makes the phone appear bulky and complex in appearance, while a closed battery can make the phone more concise, smooth, and aesthetically pleasing.

In addition, enclosed batteries can adopt a more compact design, thereby improving the utilization of body space. This provides mobile phone manufacturers with more design space to develop more diverse and innovative products.

Secondly, enclosed batteries can provide higher battery capacity in the same size. This means that enclosed batteries can provide longer battery life for the same size.

With the widespread use of mobile applications, battery life has become one of the focuses of user attention. Using larger batteries can help mobile phones work longer, which is achieved in enclosed batteries.

In addition, enclosed batteries have better sealing performance. This type of battery can better protect the interior of the phone from external environmental influences, such as dust, moisture, and oxidation substances, which may corrode the battery and circuit.

This can improve the service life of mobile phones and reduce the risk of corrosion of circuit components. In addition, enclosed batteries can also improve the waterproof performance of mobile phones, making them more suitable for outdoor use.

In terms of safety, enclosed batteries also have some advantages. Closed batteries can better prevent safety issues such as overheating and short circuits, which can reduce accidents caused by battery problems.

Mobile phones that use enclosed batteries are usually equipped with additional battery protection measures, such as overvoltage protection, overcharge protection, and temperature protection. These protective measures can improve the security of mobile phone usage.

However, some people also believe that the reason why mobile phones no longer use removable batteries is to encourage users to replace their phones with new ones. Some mobile phone manufacturers can encourage users to purchase new phones by making the battery non replaceable. This viewpoint may not be accepted by everyone, but it is worth considering.

In addition, mobile phones equipped with enclosed batteries require professional disassembly and maintenance. Once the battery malfunctions or needs to be replaced, it is difficult for users to operate it themselves and they need to seek the help of professional technical personnel.

This also means that phones using enclosed batteries may incur additional maintenance costs. However, using enclosed batteries in mobile phones still has many advantages. In the future, with the continuous development of battery technology, we can also look forward to seeing more innovative and practical battery designs