Samsung Battery Swelling – Why It Occurs & How to Deal with It Safely

Battery swelling is a critical problem that can happen to any smartphone in the long run. In Samsung smartphones, users have complained about this issue across different models, ranging from older Galaxy Note smartphones and even newer devices such as the Samsung Galaxy S21, S22, S23, and S24 series. Some lower-cost and mid-range smartphones, such as the Galaxy A06, A16, A26, A32, A36, and A56, are also not left behind in battery swelling.

Whether you have a top-of-the-line Galaxy S phone or a reliable A-series device, understanding why batteries swell and how to deal with the problem safely is important, particularly for Irish users who use their devices for work, studies, and everyday communication.

What Is Battery Swelling?

Battery swelling occurs when internal gases accumulate within a lithium-ion battery, leading to physical expansion of the battery. This bloating has the potential to force the screen or back cover of your Samsung phone to bend or be damaged. A swollen battery, if left unchecked, can cause leakage, overheating, or even an explosion.

Swelling will become more apparent on phones with closed battery cases, like the Samsung Galaxy S22 Ultra or Galaxy A32, where the pressure makes the screen rise or the back case pop open.

Why Samsung Batteries Swell

Battery swelling isn't unique to Samsung, but customers have seen it more frequently on particular models over the years. Here's why it occurs:

1. Age and Charging Cycles

After a few hundred charge cycles, lithium-ion batteries naturally degrade. This is observed on most Samsung phones in the S21, S22, and A series, such as the A16 and A56, particularly if frequently used over 18–24 months.

2. Conditions of Use and Heat

Phones such as the Galaxy S24 Ultra or A36 tend to get hot after long gaming, video editing, or charging. Overheating accelerates battery degradation, particularly in Ireland's cold climate, where phones are left charging close to radiators or left in cars during winter.

3. Low-cost Accessories and Overcharging

Low-quality chargers or cables—often used with affordable models like the Samsung Galaxy A06 or A26—can bypass safety limits and cause overheating or overcharging, both of which accelerate swelling.

4. Storage and Inactivity

Swelling can also occur in unused devices. If you’ve stored an old Galaxy S21 or A32 in a drawer with a flat battery, it may swell after months of non-use due to internal chemical breakdown.

5. Manufacturing Variability

Even with high-end devices such as the Samsung Galaxy S23+, batch differences in battery manufacturing can result in some models being more susceptible to long-term battery damage than others.

Early Indications of a Swollen Samsung Battery

No matter if you have a Galaxy A16, S22 Ultra, or A56, the signs of a swollen battery are usually the same:

• Back cover popping off or lifting
• Display lifting or pressure-sensitive areas on the screen
• Phone feeling thicker or warped
• Reduced battery life and sudden shutdowns

The phone is excessively hot while performing simple operations

If you experience any of these signs, it's time to refrain from using the device and consult a professional.

How to React in Safety

If your Samsung Galaxy A-series or S-series phone exhibits signs of battery swelling:

1. Power It Down Straightaway

Do not charge or use the phone anymore. Swelling proves that the battery is unstable.

2. Don't Attempt to Repair It Yourself

Technologies such as the Galaxy A36 or S23 FE usually need to be opened using heat or specialized equipment. Home repair may burst the battery and set it on fire.

3. Handle with Care

Place the phone in a fireproof vessel (such as a metal box) and away from flammable substances.

4. Go to an authorized repair center in Ireland

At Fone4U, we provide secure replacement batteries for any Samsung model—whether a new Galaxy S24 Ultra or a low-end Galaxy A06. Our engineers replace it with original batteries and use environmental protection methods for the disposal of the old battery.

Is a Swollen Battery Repairable?

No. Once swollen, the battery is irreparably damaged. Replacing it is the only thing you can do safely.

Even phones such as the Galaxy S22, with sophisticated power management, can't reverse internal battery swelling. Using a swollen battery further may damage the motherboard or screen.

In case swelling has resulted in additional internal damage in phones such as the Galaxy A32 or S23 Ultra, we also provide screen and component diagnostics.

Prevention of Future Battery Swelling

While battery aging is unavoidable, there are methods to minimize risk on all Samsung models, ranging from the Galaxy S21+ to the Galaxy A26:

• Utilize official or certified chargers
• Don't charge overnight or under blankets/pillows
• Avoid repeated battery discharge to 0%
• Don't expose the battery to direct heat, e.g., car dashboards or radiators
• Get regular battery health checks booked in at Fone4U

By adopting these habits, you can prolong the life of your Samsung device and significantly reduce swelling.

Conclusion

Whether you have a high-end Samsung Galaxy S24 Ultra, a dependable S21 FE, or an affordable A06 or A56, battery swelling is something every user should be aware of. Identifying it early and availing professional assistance is crucial for your safety and that of your phone.

At Fone4U, we offer reliable Samsung battery replacement services throughout Ballina, Sligo, and Bray. We treat swollen batteries with care, replace them with original parts, and get your device back in working order. 

Wait no longer for the problem to escalate—make a booking or visit one of our stores today.