High quality battery L18M4PF4 Laptop Battery Compatible with Lenovo IdeaPad C340-14API C340-14IWL S540-14API S540-14IML S540-14IWL Series L18M4PF3 5B10W67194 L18C4PF3 L18C4PF4 50Wh 3240mAh 15.44V

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Genuine L18M4PF4 50Wh 15.44V internal battery for Lenovo IdeaPad C340-14API/C340-14IWL & S540-14IML/S540-14IWL/S540-14API. Replaces L18M4PF3, FRU 5B10W67194. Guaranteed fit for your 2-in-1 or ultrabook.

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Genuine L18M4PF4 Internal Battery for Lenovo IdeaPad C340 & S540 Series

 

Power your productivity and creativity. This genuine L18M4PF4 replacement battery is engineered to the original 50Wh (3240mAh, 15.44V) specification for your Lenovo IdeaPad C340 2-in-1 or S540 ultrabook. Ensure reliable, all-day performance for work and entertainment with this guaranteed-compatible internal battery.

 Precision Compatibility
This L18M4PF4 battery is a direct internal replacement for these specific Lenovo models:

  • IdeaPad C340 Series (2-in-1):

    • C340-14API (AMD)

    • C340-14IWL (Intel)

  • IdeaPad S540 Series (Ultrabook):

    • S540-14API (AMD)

    • S540-14IML (Intel)

    • S540-14IWL (Intel)

 Key Specifications & Part Numbers

  • Battery Model: L18M4PF4 (Genuine Specification)

  • Compatible Part Numbers: L18M4PF3, L18C4PF3, L18C4PF4

  • Genuine FRU Code: 5B10W67194

  • Capacity: 50 Wh (3240mAh)

  • Voltage: 15.44 V (Critical for Compatibility)

  • Type: Li-Polymer Battery (Internal)

  • Condition: Brand New, High-Quality Replacement

Why Choose This L18M4PF4 Battery?

  • Versatile Compatibility: A single, reliable solution for both convertible (C340) and clamshell (S540) laptops across Intel and AMD platforms.

  • Optimized Power Management: Delivers stable voltage and capacity tailored for the performance needs of these systems.

  • Seamless Integration: Precision-engineered for a perfect fit, ensuring easy installation and secure connections.

  • Safety Assured: Built with advanced protection circuits to prevent overcharging, over-discharging, and short circuits.

 Installation Guide
These models feature an internal battery. Replacement requires careful disassembly of the bottom case.
For best results, we recommend professional installation if you’re not experienced with laptop repair.

Frequently Asked Questions (FAQ)

  • Q: Is this compatible with both AMD and Intel models?
    A: Yes. The L18M4PF4 battery works with both AMD (API) and Intel (IML/IWL) variants of the listed models.

  • Q: How do I find my laptop’s exact model number?
    A: Check the label on the bottom of your laptop for the full model number (e.g., 81N4000CUS).

  • Q: What’s the difference between L18M4PF4 and 5B10W67194?
    A: L18M4PF4 is the manufacturer part number, while 5B10W67194 is Lenovo’s FRU (Field Replacement Unit) code – both refer to the same battery.

Ready to Restore Your Laptop’s Performance?
Order your genuine L18M4PF4 battery today and get back to seamless computing.

Battery Capacity

50Wh 3240mAh

Voltage

15.44V

Model No

L18M4PF4

Warranty

12 Months

Replacement for Part Number:

L18M4PF4 / 5B10W67417 / 5B10T09080 / L18M4PF3 / 5B10W67194 / 5B10T09079 / L18C4PF3 / 5B10T09081 / 5B10W67415 / L18C4PF4 / 5B10W67221 / 5B10T09077

Compatible Models (use "Ctrl+F to find your model quickly")

Fit for Lenovo IdeaPad C340-14API Series;
Fit for Lenovo IdeaPad C340-14IWL Series;
Fit for Lenovo IdeaPad Flex-14IML Series;
Fit for Lenovo IdeaPad Flex-14IWL Series;
Fit for Lenovo IdeaPad S540-14API Series;
Fit for Lenovo IdeaPad S540-14IML Series;
Fit for Lenovo IdeaPad S540-14IML Touch Series;
Fit for Lenovo IdeaPad S540-14IWL Series;
Fit for Lenovo IdeaPad S540-14IWL Touch Series.

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FAQ: Genuine L18M4PF4 Replacement Battery for Lenovo IdeaPad C340 & S540 Series

 

Q1: Is this battery compatible with my Lenovo laptop?

Yes, this Genuine L18M4PF4 battery is specifically designed for these Lenovo convertible models:

  • IdeaPad C340 Series: C340-14API, C340-14IWL

  • IdeaPad S540 Series: S540-14API, S540-14IML, S540-14IWL

  • Compatible Part Numbers: L18M4PF4, L18M4PF3, L18C4PF3, L18C4PF4

  • FRU Number: 5B10W67194

Q2: What are the technical specifications?

This genuine battery matches original Lenovo specifications:

  • Voltage: 15.44V

  • Capacity: 50Wh (Watt-hours) / 3240mAh

  • Chemistry: Lithium-Ion

  • Configuration: 3-Cell

Q3: Is this a genuine Lenovo battery?

Yes, this is a 100% genuine Lenovo OEM battery manufactured to exact factory specifications. It guarantees perfect compatibility and safe operation for your convertible laptop.

Q4: How difficult is it to replace the battery myself?

Replacing the battery requires moderate technical skill:

  • Tools Needed: Precision Phillips screwdriver, plastic prying tools

  • Process: Remove bottom panel to access internal battery

  • Time Required: Approximately 20-30 minutes

  • Recommendation: Watch a tutorial for your specific model before beginning

Q5: What warranty do you offer?

We provide a 12-month warranty against manufacturing defects.

Q6: Will my laptop recognize this battery correctly?

Yes, the system will automatically recognize this genuine battery. For best performance:

  • Use Lenovo Vantage software to monitor battery health

  • Allow 2-3 complete charge cycles for calibration

  • Keep your BIOS and drivers updated

Q7: How can I maximize battery lifespan?

To extend your battery’s life:

  • Enable “Battery Conservation Mode” in Lenovo Vantage when primarily plugged in

  • Avoid frequent deep discharges

  • Maintain good ventilation during use

  • Store in moderate temperatures

Q8: What should I do with my old battery?

Recycle responsibly:

  • Do not dispose with regular trash

  • Take to authorized e-waste recycling centers

  • Many electronics retailers offer free battery recycling

Q9: What’s the advantage of the 50Wh capacity?

The 50Wh capacity provides:

  • Balanced performance for convertible usage

  • Adequate runtime for daily tasks

  • Good weight-to-capacity ratio for portability

Q10: Why choose genuine over third-party batteries?

Genuine batteries ensure:

  • Perfect fit and connector compatibility

  • Certified safety protection circuits

  • Reliable performance matching OEM standards

  • Valid warranty coverage


Need Help?
Contact us with your laptop’s model number from the bottom label, and we’ll confirm perfect compatibility for your device!

Usage Tip: For best battery health when mostly plugged in, enable Conservation Mode in Lenovo Vantage to maintain 55-60% charge and significantly extend battery lifespan.

Disclaimer:
All batteries sold on replacementbatterymall.com are replacement parts. replacementbatterymall.com doesn't affiliate with any of the original manufacturers. Any registered trademarks or model names listed above are identified as purposes of showing compatibility only.
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