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There may be two reasons for battery bulges. Firstly, there are issues with the manufacturing level of the battery, such as uneven electrode coatings and rough production processes; The second issue is overcharging and over discharging during use. These two factors can cause a violent reaction similar to a short circuit to occur inside the battery during use, generating a large amount of heat, which in turn leads to electrolyte decomposition and gasification, causing the battery to bulge.

If multiple batteries are bulging, it is likely that the cutoff voltage of the charger you are using does not match the battery. It is recommended to replace it.

In addition, prolonged use of the battery can also cause bulging, as air is conductive to a certain extent. Therefore, prolonged discharge is equivalent to direct contact between the positive and negative poles of the battery, causing a chronic short circuit.

If the backup battery is not used for a long time, it is recommended not to fully charge and store it. It is best to keep about 60% of the battery capacity - in addition, take it out and use it after a period of time, which will be beneficial for the battery's lifespan

Poor battery quality and prolonged charging time. The battery charging drum cannot be used anymore. Please replace the battery with a new one as soon as possible.

Different batteries cannot be mixed together. In the future, it is important to pay attention and keep the battery fully charged when not in use, otherwise the battery life will be lost after 1-2 months

Mobile phone batteries are high-energy lithium-ion batteries. If there is swelling or swelling, please do not continue to use it to avoid dangerous situations. At this time, please replace the battery in a timely manner!

The lifespan of a mobile phone battery is generally one to two years, after which problems may arise. These problems are mainly caused by improper use, poor quality, and incomplete structure when the battery leaves the factory.

The metallic properties of lithium determine that it undergoes an oxidation reaction when exposed to oxygen in the air, which poses a risk of explosion.

In fact, the charging and discharging of lithium batteries occur through chemical reactions. During charging, the lithium atom in the positive electrode of a lithium-ion battery loses an electron and becomes negative, becoming a lithium ion. Lithium ions swim to the negative electrode through alkaline solution, then are stored and discharged. Conversely, a lithium ion is released and reduced to a lithium atom. Not durable, due to internal consumption.

There is a layer of separator paper inside the battery, and good barrier paper can actively seal the small holes when the battery temperature is too high, preventing lithium ions from passing through and preventing harm. But when the quality of the diaphragm paper is not up to standard, it can cause harm.

This situation usually occurs in the mobile phones of users with detachable batteries. Many users prefer to purchase cheap non original batteries. In order to maximize profits, these battery manufacturers will cut corners and cut corners. This type of battery protection circuit is not safe, and it will cause the battery cells to expand. For lithium-ion batteries, expanding the battery cells to a certain limit can cause explosions, which is very dangerous. Please choose a regular and original matching battery. Although it is more expensive than others, safety is important to know that life is more expensive than everything else.

It is most common for chargers to cause battery problems. In general, users are not very concerned about the choice of their phone charger, and often just pick up a charger and charge it as long as it is functional. These chargers are likely to be cheap ones purchased from unregulated places without safe protective circuit devices. The charging current is generally high, and occasionally the charging problem may not be significant. However, if used for a long time for charging, there is a high possibility of battery expansion accidents.

Some users like to charge their phones while looking at them, which keeps them running in a high temperature environment for a long time. Continuous charging in this way can cause side effects in the electrolyte inside. Prolonged operation can seriously affect the lifespan of our phone battery and easily lead to expansion problems. If our phone is not used for a long time, the battery installed on the phone will also experience swelling. This is due to long-term storage of the battery, causing the voltage to slowly drop below 2V. This will cause chemical reactions inside, which will cause the lithium battery of the phone to bulge. This is a common reason that many users find when dismantling old phones. Therefore, if batteries need to be stored for a long time, the most reliable method is to regularly charge them to a half charged state, which can extend their service life.

Once the problem of phone battery bulge occurs, we should immediately stop using it. For our own safety, according to the model of our phone, buy a safe power supply that matches it. Remember to take good care of your phone and not play with it while charging. If there is a battery bulge during normal use, please file a complaint on the online 315 platform. There will be dedicated staff to handle it. In such cases, some unscrupulous merchants engage in illegal activities driven by their interests.

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