That a battery is inflated is something quite common, but it is a pity when it happens.
Greetings Steemians
The high temperatures
Do not let our phone overheat to such a point.
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It can be said that heat is the worst enemy of our electronic devices, in the case of batteries there is no exception. The main cause of the swelling of our battery is its exposure to very high temperatures. Excessive heat can cause the lithium and other substances inside to get to release gas, which inevitably causes the battery to inflate, this happens because the gas has nowhere to escape and ends up deforming the battery.
Charging your phone during a heat wave is a very bad idea, since the temperature you get from the load, added to the temperature that exists in the environment, can damage the battery. It would be best to charge our phone in fresh places, away from any contact with the sun.
Battery overload
We must always have balance in the load, not load it to the maximum but do not let it discharge completely.
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This is another of the main reasons for bulging the batteries, leaving a phone charging all night is a serious error, this causes it to be receiving more energy than it needs, causing long-term battery inflate, in addition to shorten the duration of it. It is recommended to keep the charge between 20 and 80%, that way we will avoid the problem of battery overload.
Incompatible charger
Although with another charger it is faster, it will damage the battery little by little.
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Many times we use a charger that is not the one that came from the factory with our phone, a friend's or a family member's, this can be done sporadically and nothing will happen, but when it's done every day it's where our Battery starts to get damaged. Each battery needs a different power load, which can be identified by the number of amps that the battery specifies on its surface, the problem is that each charger has a different power, either higher or lower, made specifically for the battery for which it was created. That is why when using another person's charger, we are charging our battery with a power that is not adequate, causing each time our battery lasts less and over time inflate. Nor should we charge them with chargers that do not have a brand, since they generally send more volts than those recommended for batteries, causing them to be damaged very quickly.
Another very serious error is to fully charge the battery of our phone with the computer, the power it sends is very low and in the long run it will damage our battery. This can be done once or maybe two, leaving a lapse of time between each one, but by doing it all the time we will inevitably be damaging the battery. That is why it takes much longer than normal to charge our phone with a computer.
Manufacturing defects
Some batteries since the creation of the complete telephone come with defects, it is so much so that in some cases being new they do not last absolutely nothing charged.
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There are cases in which the battery swells due to a defect when it is created, some of its components do not work properly and in a short time it is damaged. If this happens a few weeks after buying the battery, it is possible that the defect comes from the factory, it is best to ask for a change or return the money.
When a newly purchased battery lasts almost nothing charged, most likely there is a factory error, unless it is a scam and the battery is already widely used.
Dangers of an inflated battery
An inflated battery can become very dangerous to our health. Let's be very careful.
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Inflated batteries contain gases inside, which can be really flammable. Overheating the phone or a short circuit can cause the battery to catch fire or explode, although this is extremely rare. It is for this reason that we must take special care to leave our phone with a swollen battery for many hours, as this could cause overheating and a very unfavorable result for our health.