Why Your Smartphone’s Battery Swelling and What to Do | Check Now

Why Your Mobile Phone Battery is Swelling and What to Do: Have You ever noticed that your once-sleek smartphone is looking a little…puffy? A swollen battery is a surprisingly common problem, and while it may not happen overnight, it’s important to understand why it happens and the potential risks. This guide will explore the main reasons behind smartphone battery drain and what you can do to protect your device.

Understanding Smartphone Battery Chemistry

Most smartphones today rely on Lithium-ion (Li-ion) batteries. They offer the best power density for our most demanding apps and features. However, Li-ion batteries have a delicate internal balance. When this balance is out of whack, it can lead to gas build-up and – you guessed it – a swollen battery.

Also read: How to Use Two Whatsapp Accounts in One Android Phone? 

Top Reasons for Smartphone Battery Swelling

  • Overheating: This is a major culprit. Excessive heat generation during charging or use can accelerate the breakdown of electrolytes inside the battery, causing gas generation and expansion. Avoid using low-quality chargers or leaving your phone in direct sunlight for long periods.
  • Manufacturing defects: Sometimes, even reputable manufacturers can slip defective batteries through the cracks. If your phone is relatively new and the battery swells without any obvious external triggers, it could be due to a malfunction.
  • Physical damage: Dropping or subjecting your phone to bumps can cause internal damage to the battery, causing leakage and swelling. Invest in a sturdy case and avoid rough handling of your device.
  • Deep discharge and overcharging: Constantly letting your phone die completely or leaving it plugged in even after it reaches 100 percent can put a strain on the battery. Aim for low discharges and unplug your phone after fully charging it.

Natural Age: Like all things, batteries age. Over time, the chemical reactions inside the battery weaken, and gas can form. This is more likely with older phones.

The dangers of a swollen battery

A swollen battery isn’t just an aesthetic concern. This poses a risk of fire and can damage your phone’s internal components. If you notice any signs of swelling, take immediate action.

What to do if your smartphone battery explodes

  • Power down immediately: Do not try to turn on your phone or force it into its case.
  • Remove the battery safely (if possible): Some phones have removable batteries. If yours is, carefully remove it following the manufacturer’s instructions.
  • Get professional help: Take your phone to a qualified technician for proper disposal and possible repair of a swollen battery.

Prevent smartphone battery swelling

  • Use original or certified chargers: Cheap, third-party chargers may not regulate voltage properly, leading to overheating.
  • Maintain optimal phone temperature: Avoid extreme heat or cold environment while using your phone.
  • Practice healthy charging habits: Don’t let your phone run completely dry and avoid overcharging.
  • Invest in a quality case: A good case can absorb shock during a drop and prevent physical damage to the battery.

Monitor battery health (if available):

Some phone models offer battery health diagnostics. Watch for these signs to identify potential problems early.

By understanding the causes of smartphone battery swelling and taking precautions, you can ensure that your device lasts longer and works at its best. Remember, a swollen battery is a safety hazard. Don’t ignore it – take action to protect yourself and your phone.


A plumped-up smartphone battery is by far the most critical issue that should never be ignored. Through the apprehension of the reasons like for example overheating, manufacturing fault, physical damage, and natural aging, you can realize how to prevent it from occurring before it happens.

You have to make sure that you always maintain safe charging practices, go for any high-quality chargers, and also, make sure that you keep your phone cool. Additionally, the bulge can be observed on your phone. Therefore, we strongly advise you to disconnect your phone take out the battery if possible, and then seek professional medical help.

So, remember to keep your phone safe and sound by following the measures given above, and you’re all set for long-term use without the hazards of a bulging battery.

FAQs: Why Your Smartphone’s Battery Swelling and What to Do

Swollen Smartphone Battery: Causes, Risks & Solutions

Can a Swollen Battery Explode?

Yes, a swollen battery can explode, though it’s not a guaranteed outcome. The swelling indicates a buildup of pressure and gas inside the battery, which can potentially lead to a rupture or explosion if not addressed. It’s important to take a swollen battery seriously and handle it with caution.

Why Your Huawei Phone’s Battery is Bulging and What to Do

Several factors can cause a Huawei phone’s battery to swell, including:

  • Overheating: Using low-quality chargers, leaving your phone in direct sunlight, or running demanding apps for extended periods can generate excessive heat.
  • Manufacturing Defects: Even reputable manufacturers can have faulty batteries slip through.
  • Physical Damage: Dropping your phone can damage the battery internally.
  • Deep Discharge and Overcharging: Regularly letting your phone die completely or keeping it plugged in even after reaching 100% can stress the battery.
  • Natural Aging: Like all batteries, they weaken over time, leading to potential gas buildup.

What to Do with a Swollen Huawei Phone Battery:

  • Power Down Immediately: Don’t try to turn your phone on or force it into its case.
  • Safely Remove the Battery (if possible): Some Huawei models have removable batteries. If yours does, carefully remove it following the manufacturer’s instructions.
  • Seek Professional Help: Take your phone to a qualified technician for proper disposal of the swollen battery and potential repairs. Don’t attempt to fix it yourself.

Preventing a Swollen Battery

  • Use Original or Certified Chargers: Cheap chargers might not regulate voltage properly, leading to overheating.
  • Maintain Optimal Phone Temperature: Avoid extreme heat or cold environments when using your phone.
  • Practice Healthy Charging Habits: Don’t let your phone completely drain and avoid overcharging.
  • Invest in a Quality Case: A good case can provide shock absorption during falls.
  • Monitor Battery Health (if available): Keep an eye on battery health indicators to identify potential issues early on.

How to Fix a Swollen Phone Battery (Important Note)

Unfortunately, there’s no safe way to “fix” a swollen battery. Once a battery swells, the damage is done. The focus should be on safe disposal and replacement with a new, genuine battery.

Signs of a Swollen Phone Battery

  • Visible bulging of the back cover of your phone.
  • The phone feels hot to the touch, even when not in use.
  • The battery doesn’t hold a charge 
  • The screen seems to be pushed up slightly from the frame.

If you notice any of these signs, power down your phone immediately and seek professional help.

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