Updated November 2, 2026 · The Computer Hospital, Midtown Houston
A laptop battery can swell when the lithium-ion cells inside it wear out or get damaged. Gas builds up inside the sealed battery and pushes against whatever is above it — usually the trackpad, keyboard or bottom panel. A swollen battery is a safety problem, not a cosmetic one. Charging it, using it, pressing on it or forcing the case shut can make a fire more likely.
In Houston? Call us at (713) 472-4357 before you bring it in, and tell us the battery is swollen. We replace swollen batteries, and we take swollen and old batteries for recycling free of charge — even if we're not doing the repair.
Why laptop batteries swell
Every lithium-ion battery slowly breaks down as it's charged and used. That chemistry can produce gas, and in a sealed pouch the gas has nowhere to go, so the battery puffs up. A swollen battery is also more likely to short internally, which can lead to a dangerous overheating event called thermal runaway.
- Age and use: hundreds of charge cycles wear the cells down.
- Heat: blocked vents, using a laptop on a bed or blanket, and hot rooms all speed up wear. Apple, for example, says MacBooks work best between 50° and 95° F and that even storing a battery somewhere hot can damage it permanently.
- Physical damage: drops and pressure on the battery area can damage the layers inside.
- Defects: a faulty cell, charger or charging circuit can contribute.
A Houston problem: hot cars
A parked car in a Houston summer gets far hotter than 95° F — and far hotter than the 113° F Apple lists as the top of its storage range. Leaving a laptop in the car, in the trunk or in a bag on the back seat is one of the easiest ways to shorten a battery's life. Take it inside with you.
Leaving a laptop plugged in doesn't, by itself, make a battery swell — modern laptops manage charging. But heat combined with being held at 100% for long periods does add wear. If your laptop has a battery-health or "optimized charging" setting, turn it on.
Warning signs
- The laptop rocks on a flat desk because the bottom is no longer flat.
- The trackpad is hard to click, sits crooked or lifts away from the palm rest.
- The case seams open up, the keyboard bows upward or the bottom panel bulges.
- The battery runs down much faster than it used to, or the laptop shuts off at 20–30%.
- Unusual heat, a chemical smell or new pressure marks on the case.
Swelling isn't always visible from the outside. Don't open the laptop to check. Let a technician do it with the right handling procedures.
What to do right now
- Stop using it. Don't keep working to finish a backup — people come before files.
- Shut it down and unplug it, if that's safe. Don't charge it, and don't run it to "drain" the battery.
- Handle it as little as possible. Set it on a hard, non-flammable surface away from paper and fabric. Don't stack anything on it.
- Don't take it apart yourself. No tools, no pressing the case closed, no prying up the trackpad.
- Call a repair shop before you transport it. Tell them the battery is swollen. Carry it flat, in a hard case or box, and don't leave it in a hot car.
- If it smokes, vents or heats up fast, get away from it and call 911.
What about your files?
Don't restart the laptop or plug it in just to run a backup. In almost every laptop your files live on a separate SSD or hard drive, not the battery, so they're usually fine. Once the battery has been dealt with safely, we can check the drive and get your files off if needed. If you already have a cloud backup, you can reach it from another computer in the meantime.
Battery replacement at The Computer Hospital
When you bring the laptop in, we:
- Remove the swollen battery safely and store it properly until it's recycled.
- Check for damage the swelling caused to the trackpad, keyboard, hinges or case.
- Look up the correct replacement battery for your exact model and quote it before any work starts.
- Check the charging port and adapter, since a bad charger can contribute to battery problems.
The initial in-shop diagnostic is free. Repairs are quoted before we start and backed by our 90-day labor warranty; parts carry their own warranty. See laptop repair and Mac repair for more.
Safe battery disposal and recycling
Never put a lithium-ion battery in the trash or your curbside recycling bin. Batteries thrown away are a common cause of fires in garbage trucks and recycling plants. Many retail battery bins don't accept swollen or damaged batteries.
The easy option in Houston: bring it to us. The Computer Hospital accepts swollen and used laptop batteries for free drop-off recycling, and we dispose of every battery we replace. We use a recycling pickup service that handles damaged lithium-ion batteries properly. Call ahead and carry it flat in a box.
How to help your next battery last
- Keep the laptop out of hot cars and direct sun.
- Use it on a hard surface so the vents can breathe — not on a bed, pillow or couch.
- Turn on battery-health or optimized-charging features.
- Avoid drops and pressure on the battery area.
- Replace a battery that's clearly worn out before it gets to the swelling stage.
Frequently asked questions
Can I keep using my laptop if the battery is only a little swollen?
No. Any swelling means the battery is damaged. Stop using and charging it and have it checked.
Should I back up my computer first?
Not once you suspect swelling. Shut it down. Your files are on a separate drive and can usually be recovered safely afterward.
Can a swollen battery go back to normal?
No. Swelling doesn't reverse. Don't try to press, puncture or "fix" the battery.
Can a swollen battery damage the trackpad or case?
Yes. The pressure can crack the palm rest, bend the case or break the trackpad. We check for that during the repair.
Where can I get rid of a swollen laptop battery in Houston?
Bring it to The Computer Hospital at 3512 Travis Street in Midtown. We take swollen and used laptop batteries for free recycling. Call (713) 472-4357 first and carry it flat in a box.
Is it safe to drive a laptop with a swollen battery to the shop?
Usually, if it's turned off, unplugged, cool and not smoking. Carry it flat in a box, keep it out of direct sun and bring it straight in. If it's hot, smoking or smells of chemicals, don't move it — call 911.
Swollen battery in Houston? Call (713) 472-4357 or request service online. We're at 3512 Travis Street in Midtown, Monday–Friday 9–6 and Saturday 10–2.
Related: laptop won't charge · computer overheating
Sources: U.S. EPA, Lithium-Ion Battery FAQ · U.S. EPA, Used Lithium-Ion Batteries · Apple, Maximizing Battery Life and Lifespan
Computer Hospital · Houston since 1986
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