Swollen Battery

• Swollen Battery: When a rechargeable battery expands or bulges due to internal pressure, often resulting in a visibly deformed or swollen appearance.
• Affected Devices: This issue can occur in various devices that use lithium-ion or lithium-polymer batteries, such as laptops, smartphones, tablets, and even electric vehicles.

Common Causes of Swollen Batteries

1. Overcharging: Continuously charging a battery beyond its full capacity can cause it to swell.
2. Physical Damage: Impact, punctures, or other physical damage to the battery can lead to swelling.
3. Excessive Heat: Exposure to high temperatures can cause the battery's internal components to expand, resulting in swelling.
4. Manufacturing Defects: In rare cases, manufacturing flaws can cause batteries to swell, even without misuse.
5. Age: As batteries age, their internal chemical components can degrade, leading to swelling.

Risks Associated with Swollen Batteries

1. Fire Hazard: Swollen batteries are at a higher risk of catching fire or even exploding due to increased internal pressure.
2. Device Damage: A swollen battery can put pressure on and damage other components within the device.
3. Reduced Performance: Swollen batteries often have reduced capacity and may not function properly.

Troubleshooting and Solutions

1. Stop Using the Device: If you notice a swollen battery, stop using the device immediately and unplug it from any power source.
2. Remove the Battery: If possible, carefully remove the swollen battery from the device. If the battery is non-removable, do not attempt to remove it yourself.
3. Replace the Battery: Contact the device manufacturer or a certified repair centre to obtain a replacement battery. Do not attempt to replace the battery yourself unless you have the proper tools and expertise.
4. Dispose of the Battery Properly: Do not dispose of the swollen battery in your bin at home. Take it to a battery recycling centre, contact the manufacturer for proper disposal instructions or see if your local council will collect it for you.

Manufacturer support: Dell laptop battery support | HP laptop battery support | Lenovo battery support | Asus battery support | Microsoft Surface battery support | Acer support

Important Notes 

• Swollen batteries are a serious safety hazard and should be handled with caution. Do not attempt to puncture, bend, or compress a swollen battery, as this can increase the risk of fire or explosion.
• If you are unsure about how to handle a swollen battery, seek professional assistance from the device manufacturer or a certified repair centre.

Return to the technical glossary to learn more about the technology we reference throughout this website.