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Service

Laptop Battery Replacement Service

4.9
Trustpilot
5.0

Professional laptop battery replacement in London for all brands. Same-day service available when batteries are pre-ordered.

Battery draining fast, unexpected shutdowns, swollen battery? High-quality replacements with 12-month warranty.

220,000+
Repairs Completed
6+ Months
Warranty
Since 2014
Founded in London
Data Untouched
We Don't Wipe Devices

Service Details

Professional Laptop Battery Replacement Service in London

Professional battery replacement service for all major laptop brands including Dell, HP, Lenovo, ASUS, Acer, MSI, and other Windows laptops. Battery draining within hours, unexpected shutdowns, or Windows battery warnings? Our battery replacement service restores your laptop’s power performance using high-quality replacement batteries matched to your specific model.

Signs You Need Battery Replacement:

  • Battery drains within 2-3 hours of light use
  • Laptop shuts down unexpectedly despite showing charge remaining
  • Device won’t power on without mains charger connected
  • Windows shows “Consider replacing your battery” notification
  • Battery percentage jumps erratically (e.g. 45% to 12% instantly)
  • Laptop becomes unusually warm during normal use
  • Battery swelling (trackpad becomes stiff or bottom case bulges)
  • Poor battery performance after 2+ years of regular use
  • Battery report shows significantly reduced capacity vs design capacity

Same-Day Service Available: Same-day battery replacements can be completed in 1 hour if we prepare the replacement battery in advance for your appointment. Contact us with your exact laptop model (manufacturer, model number, and serial number) so we can order the correct battery – parts typically arrive next day. Call or book an appointment to arrange same-day service.

How Battery Replacement Works: Laptop batteries vary significantly by manufacturer and model. Most modern laptops use internal batteries secured with screws or adhesive. We identify your exact laptop model and battery specification, carefully remove the bottom case or keyboard assembly (depending on laptop design), disconnect the old battery following manufacturer-specific procedures, install the new battery matched to your laptop’s specifications, and perform comprehensive charging and capacity testing before returning your device.

Important Safety Note – Swollen Batteries: If your trackpad feels stiff, doesn’t click properly, keyboard keys feel raised, or your laptop doesn’t sit flat on a surface, this indicates battery swelling – a potentially hazardous condition. Stop using the device immediately, don’t charge it, and don’t press on the swollen area. Swollen batteries contain pressurized gases and can rupture or catch fire if punctured. Contact us for urgent same-day battery replacement. We handle swollen batteries with specialized safety protocols and disposal procedures.

High-Quality Replacement Batteries: We use premium replacement batteries matched to your laptop’s specific model and power requirements. Each battery is verified for compatibility before installation and features:

  • Capacity matching or exceeding original manufacturer specifications
  • Premium lithium-ion or lithium-polymer cells from reputable manufacturers
  • Integrated battery management system for optimal charging and safety
  • Safety certifications (CE, RoHS, UL where applicable)
  • Pre-installation quality control and capacity verification
  • 12-month warranty coverage

Battery Health Monitoring in Windows: After replacement, you can monitor your new battery’s health using Windows built-in tools:

  • Windows 11/10: Settings > System > Power & Battery > Battery Health
  • Battery Report: Run powercfg /batteryreport in Command Prompt for detailed capacity analysis
  • Design Capacity vs Full Charge Capacity: New batteries should show 95-100% of design capacity
  • Cycle Count: Starts at 0 or low count with new battery

We’ll demonstrate how to check these indicators after installation and explain how to monitor long-term battery health.

Post-Repair Testing: We verify charging functionality at multiple power levels, battery percentage accuracy and stable discharge rate, proper sleep/wake cycles and power management, charging indicator responds correctly, battery capacity matches specifications in Windows battery report, temperature monitoring confirms safe operating range, and full system functionality including WiFi, Bluetooth, and USB ports. All battery replacements are performed at our London repair centre.

Additional Services During Battery Replacement: With your laptop already disassembled for battery replacement, consider these additional services at reduced labour cost:

  • Deep cleaning and thermal paste replacement – thorough cleaning of cooling fans and heat sinks, thermal paste refresh on CPU/GPU, prevents overheating and improves performance, especially beneficial for laptops over 2 years old
  • RAM upgrade – increase memory from 8GB to 16GB or 32GB for improved multitasking performance (where hardware supports it)
  • SSD upgrade – replace mechanical hard drive with fast SSD or upgrade existing SSD capacity, includes Windows installation, driver setup, and data migration assistance

These services cost less when performed during battery replacement since the device is already disassembled.

12-Month Warranty: All battery replacements include a 12-month warranty covering the replacement battery and installation workmanship.

What to Expect After Battery Replacement: Your laptop will have restored battery life matching or exceeding original specifications, accurate battery percentage readings with stable discharge rate, proper charging behavior with correct time estimates, reliable performance without unexpected shutdowns, and full Windows battery health reporting showing healthy capacity.

Battery Lifespan and Care: Modern lithium-ion/lithium-polymer batteries typically provide good performance for 300-500 charge cycles (roughly 2-3 years of normal use). To maximize your new battery’s lifespan:

  • Avoid extreme temperatures (don’t leave laptop in hot car or freezing conditions)
  • Use manufacturer-approved or certified chargers only
  • Keep Windows updated for optimal battery management and power settings
  • Don’t leave laptop plugged in 24/7 (occasionally use on battery power)
  • Enable “Battery Saver” mode when running on battery for extended periods
  • Store long-term at 40-50% charge in cool, dry location
  • Avoid fully draining to 0% regularly (modern batteries prefer partial discharge cycles)

Common Questions:

  • How long does battery replacement take? Battery replacement takes 1-2 hours when batteries are in stock or pre-ordered for your appointment. Same-day service possible if we have the correct battery or can source it before your visit. Some laptop models require longer due to complex disassembly.
  • Will my data be safe? Battery replacement doesn’t directly affect your hard drive or SSD. We never intentionally delete customer data. However, we cannot guarantee data safety during hardware repairs. By agreeing to the service, you accept responsibility for your data. We always recommend backing up important files before any repair using Windows Backup, OneDrive, or external storage.
  • Do you use genuine manufacturer batteries? We use premium replacement batteries with the same capacity and specifications as the original. These are high-quality compatible parts from reputable suppliers, not always manufacturer-branded. They provide equivalent or better capacity, safety, and longevity with better value and longer warranty (12 months).
  • What if I have a swollen battery? Swollen batteries require immediate attention and special handling. Stop using the device and don’t charge it. Contact us for urgent same-day service. We safely remove swollen batteries using specialized tools and disposal protocols. There’s no additional charge for swollen battery handling, but some laptop models with severely swollen batteries may have secondary damage requiring additional repair.
  • Will battery replacement reset my battery health in Windows? Yes. Windows will recognize the new battery and battery reports will show 0 or very low cycle count with full design capacity. Battery health indicators will show the battery as new.
  • Can I upgrade to higher capacity battery? Laptop batteries are engineered specifically for the chassis size, thermal design, and power management system. We install batteries matching manufacturer specifications – the maximum safe capacity for your laptop model. “Higher capacity” batteries from unknown sources often use inferior cells and pose safety risks or don’t fit properly.
  • Do you need access to my device for testing? To properly test your laptop after repair, we need to boot into Windows to verify battery charging, capacity reporting, power management, and system functionality. We can create a temporary test account or use an existing guest account. If you prefer not to provide access, we can only perform basic power-on testing – but full functionality testing is recommended to ensure your repair is 100% successful.
  • Can you replace batteries on all laptop brands? We service most major laptop brands including Dell, HP, Lenovo, ASUS, Acer, MSI, Toshiba, Samsung, and others. Some ultra-thin laptops or specialized gaming laptops may require additional sourcing time for batteries. Contact us with your exact model for availability confirmation.

Diagnostics Available: Not certain if your battery needs replacement? Bring your laptop to one of our London locations for diagnostics. Sometimes power issues stem from faulty chargers, charging port problems, power management faults, or Windows settings that don’t require battery replacement. We’ll run comprehensive battery health tests including cycle count analysis, capacity verification compared to design specifications, charging behavior assessment, and power management diagnostics. You’ll receive an honest assessment and accurate quote before any repair work begins.

Check Your Battery Health Now: Before booking this service, check your current battery condition in Windows:

Windows 11:

  1. Open Settings > System > Power & Battery
  2. Expand “Battery” section
  3. Check battery percentage and health status

Generate Detailed Battery Report (All Windows Versions):

  1. Press Windows + X, select “Command Prompt (Admin)” or “PowerShell (Admin)”
  2. Type: powercfg /batteryreport
  3. Open the generated HTML report (usually in C:\Users\[YourName]\battery-report.html)
  4. Compare “Design Capacity” vs “Full Charge Capacity”

If your battery shows full charge capacity below 60% of design capacity, cycle count over 300, or Windows recommends battery replacement, battery replacement is advised. If you’re unsure about the results, bring your laptop in for free assessment.

Important: Additional Damage Disclosure

If your laptop has any additional damage beyond the battery issue, please mention it when booking your repair:

  • Existing screen damage (cracks, dead pixels, backlight issues)
  • Keyboard issues (sticky keys, non-responsive keys, liquid spills)
  • Software issues or Windows errors
  • Liquid damage or exposure to moisture
  • Broken hinges, damaged casing, or loose components
  • Any other visible damage to the device

If we discover liquid damage, corrosion, or additional hardware faults during battery replacement, additional cleaning or repairs may be required at extra cost. Swollen batteries sometimes cause secondary damage to trackpads, keyboard assemblies, or internal components. We’ll always inform you and get your approval before proceeding with any additional work. If you choose not to proceed with the repair due to additional damage or costs, a standard diagnostic service fee will apply.