📌 Key Takeaways
- •Always plugged in: Constant 100% charge + heat is the #1 cause
- •Age: Lithium batteries degrade after 2-3 years / 500 cycles
- •Heat: Hong Kong summers + poor ventilation accelerate swelling
- •Cheap aftermarket cells: No-name batteries without protection circuits swell faster
Notice your laptop bottom case bulging, trackpad popping up, or the machine wobbling on a flat table? That's almost certainly a swelling battery. This isn't minor — a swollen lithium battery is a fire risk, and mishandling it can destroy your machine.
Why Do Batteries Swell?
- Always plugged in: Constant 100% charge + heat is the #1 cause
- Age: Lithium batteries degrade after 2-3 years / 500 cycles
- Heat: Hong Kong summers + poor ventilation accelerate swelling
- Cheap aftermarket cells: No-name batteries without protection circuits swell faster
4 Immediate Steps
1. Don't press or puncture it: Never try to flatten it — you could pierce the cell
2. Back up your data now: While it still boots, back up immediately
3. Stop charging: Unplug the adapter to avoid further heating
4. Get it serviced ASAP: Swelling never reverses, only gets worse
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Free diagnosis · Transparent pricing · No fix, no fee · 180-day warranty
> 💰 See all our published repair prices on the pricing page.
Battery Replacement Cost in Hong Kong
Laptop King OEM-grade battery replacement from HK$580 (model dependent), done in 45 minutes on-site, with 180-day warranty. We cover MacBook, ThinkPad, ASUS, Dell and more.
Not sure if it's the battery? Try our AI diagnostic tool — free preliminary assessment.
FAQ
Q1: Can I still use a laptop with a swollen battery?
A: It may boot for now, but we don't recommend it. Internal pressure keeps building, with fire and leakage risk. Replace it ASAP.
Q2: How long does battery replacement take?
A: 45 minutes on the spot at Laptop King — most models in stock, same-day pickup.
Q3: Can I buy a battery online and replace it myself?
A: Not recommended. You need proper tools, and puncturing a cell can cause fire. We've seen plenty of online batteries swell again within months.
Q4: How do I prevent battery swelling?
A: Avoid constant 100% charging (use an 80% limit if available), keep ventilation good, don't charge overnight. Check batteries on machines over 2 years old.
Need Professional Laptop Repair?
Laptop King has 15+ years of repair experience in Shek Mun, Sha Tin. Free diagnosis, transparent pricing, no fix no fee. 180-day warranty for your peace of mind.