Laptop batteries do not last forever. Over time, they lose their ability to hold a full charge and eventually fail completely. Knowing the warning signs early can help you avoid being caught out. Protech Repair in Cheam replaces laptop batteries for all brands same day from £49.
Quick Answer: How Do I Know If My Laptop Needs a New Battery?
Your laptop needs a new battery if it runs out of charge very quickly, only works when plugged in, shuts down unexpectedly, or displays a battery warning. Most laptop batteries need replacing after 2 to 4 years of regular use.
Top Warning Signs Your Laptop Battery Is Failing
1. Battery Drains Very Quickly
A healthy laptop battery should last between 4 and 8 hours on a full charge depending on usage. If your battery only lasts 1 to 2 hours or less, it has significantly degraded and needs replacing.
2. Laptop Only Works When Plugged In
If your laptop shuts down the moment you unplug it — even if the battery indicator shows charge remaining — the battery has failed and can no longer deliver power to the laptop.
3. Battery Does Not Charge Beyond a Certain Percentage
A battery that stops charging at 40% or 60% and never reaches 100% is showing clear signs of degradation. The cells inside the battery pack are no longer holding their full capacity.
4. Battery or System Warning Messages
Windows will display a “Consider replacing your battery” warning when it detects significant capacity loss. macOS shows a “Service Recommended” notice in the battery health menu. These warnings should not be ignored.
5. Laptop Shuts Down Unexpectedly
If your laptop powers off suddenly without warning — even when the battery indicator shows 30% or 40% remaining — the battery can no longer provide consistent power. This sudden shutdown can also cause data loss and file corruption.
6. Swollen or Bulging Battery
A swollen battery is a serious safety concern. If you notice the bottom of your laptop appears uneven, the trackpad is being pushed upward, or the laptop does not sit flat, the battery may be swollen. Stop using the laptop immediately and bring it to Protech Repair in Cheam for urgent battery replacement.
7. Battery Getting Unusually Hot
While all laptop batteries generate some heat during charging and use, a battery that becomes excessively hot is a warning sign of failure. Extreme heat can also be a fire risk in the case of a deteriorating lithium-ion battery.
How Long Should a Laptop Battery Last?
Most laptop batteries are designed to retain acceptable capacity for 300 to 500 charge cycles, which typically equates to 2 to 4 years of regular use. After this point, noticeable degradation occurs. If your laptop is more than 3 years old and you are experiencing battery issues, a replacement is almost certainly the most cost-effective solution.
Laptop Battery Replacement at Protech Repair Cheam
Protech Repair in Cheam replaces laptop batteries for all major brands including Dell, HP, Lenovo, ASUS, Acer, Toshiba, MSI, and Apple MacBooks. Battery replacement starts from £49 and is typically completed in 30 to 60 minutes. All replacements include a 90-day warranty.
Frequently Asked Questions
How much does laptop battery replacement cost in Cheam?
Laptop battery replacement at Protech Repair in Cheam starts from £49. MacBook battery replacement starts from £79. The exact price depends on the laptop brand and model. Call 020 3411 4022 for a quote for your specific laptop.
Can I use my laptop while it has a swollen battery?
No. A swollen laptop battery is a serious safety hazard. Stop using the laptop immediately and bring it to Protech Repair in Cheam for urgent battery replacement. Do not attempt to remove or puncture a swollen battery yourself.
Replace Your Laptop Battery in Cheam Today
Bring your laptop to Protech Repair at 3 Cheam Common Road, Worcester Park, KT4 8TL. Same-day battery replacement. Free diagnosis. 90-day warranty. Serving Cheam, Worcester Park, Sutton, Epsom and South London.
Call: 020 3411 4022 | WhatsApp: +44 7543 637893
