Can a swollen car battery still be used?

A swollen battery is a common condition encountered during the use of electronic devices, especially vehicles. So, what is this phenomenon? What causes it? And most importantly, can a swollen battery still be used? Let’s explore this in detail in the article below.

1. What is a swollen battery?

A swollen battery is characterized by the appearance of bulges and deformations on its surface compared to its original shape. This condition is often accompanied by signs such as unusual heating, unpleasant odors, and a rapid decrease in battery capacity.

A swollen battery is a warning sign indicating that the battery is facing serious issues and can pose a danger if continued to be used.

• 2. Can a swollen battery still be used?
• The short answer is NO.

Although some people believe that a slightly swollen battery can be temporarily used, this carries significant risks. A swollen battery indicates internal damage, which can lead to:

Reduced performance: A swollen battery significantly decreases its ability to charge and discharge, affecting the operation of the device.

Chemical leakage: A swollen battery cannot store and discharge effectively as normal. Chemical reactions are hindered, leading to unstable current production, which can cause devices to perform poorly, flicker, or even stop working altogether.

• Fire or explosion: In severe cases, a swollen battery may explode, causing harm to people and property.
• Therefore, to ensure safety for yourself and your devices, you should never attempt to use a swollen battery, even temporarily. Replace it immediately with a new, genuine battery from Huỳnh Châu, the official distributor of ABS batteries.
• 3. Causes of swollen batteries

There are multiple reasons that lead to a swollen battery, including:

Overcharging: Charging the battery for too long or using an incompatible charger can cause the battery to heat up, generate gas, and swell.

High temperatures: Prolonged exposure to high temperatures increases the internal pressure of the battery, leading to deformation.

• Battery lifespan: A battery that has been in use for many years may face aging components, reducing performance and increasing the likelihood of issues, including swelling. Corroded terminals, deteriorated separators, and lower electrolyte concentration all increase the risk of swelling.
• Manufacturing defects: In some cases, defects from the manufacturer, such as mistakes during production or the use of low-quality materials, can also cause swelling. These defects can lead to unstable battery operations, making it prone to heating and swelling during charging or usage.
• Strong impacts: Strong impacts during transport or use are also a common cause.
• 4. Handling swollen batteries
• When you discover a swollen battery,