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    • Genuine 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
    Genuine 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
    Genuine 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
    Genuine 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
    Genuine 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
    Genuine 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
    Genuine 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
    Genuine 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
    Genuine 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
    Genuine 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

    Genuine 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

    $59.99

    In stock, item location: Commerce, CA.ETA:3-5 business days to USPS
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    Battery Capacity

    50Wh 3240mAh

    Brand

    YuYan

    Voltage

    15.44V

    Model No

    L18M4PF4

    Warranty

    12 Months

    Ensure your Lenovo IdeaPad laptops stay powered with the Genuine L18M4PF4 Laptop Battery. This high-quality replacement battery is designed specifically for models including C340-14API, C340-14IWL, S540-14API, S540-14IML, and S540-14IWL, guaranteeing a perfect fit and safe operation.

    With a 50Wh capacity and 3240mAh power output at 15.44V, it provides long-lasting energy for work, study, or entertainment. Built with premium materials, this battery ensures consistent performance, stable voltage, and extended lifespan, reducing the need for frequent recharges.

    Whether you’re replacing a worn-out battery or need a backup for travel, the L18M4PF4 battery delivers reliable power for uninterrupted productivity. Easy to install, it restores your Lenovo IdeaPad to optimal mobility and efficiency.

     

    Product FAQ

    Q1: Is this battery compatible with my Lenovo IdeaPad laptop?
    A: Yes, it is compatible with C340-14API, C340-14IWL, S540-14API, S540-14IML, and S540-14IWL models. Always check your laptop model number before purchasing.

     

    Q2: What is the battery capacity and voltage?
    A: The battery provides 50Wh capacity and 3240mAh at 15.44V, offering long-lasting performance.

     

    Q3: Can I install it myself?
    A: Yes, installation is straightforward. Ensure your laptop is powered off and follow standard safety precautions when replacing the battery.

     

    Q4: How long does a full charge last?
    A: Depending on usage, a full charge can typically last 4–6 hours of regular productivity tasks like browsing, streaming, or document editing.

     

    Q5: Is this a genuine Lenovo battery?
    A: Yes, this is a 100% genuine replacement battery designed to meet Lenovo’s specifications for safety, reliability, and performance.

     

    Q6: Will this battery affect my laptop warranty?
    A: Installing a genuine replacement battery like the L18M4PF4 typically does not void your warranty, but check Lenovo’s warranty guidelines for confirmation.

     

     

    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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    Genuine L18M4PF4 Laptop Battery FAQ

     

    1. What laptops are compatible with the L18M4PF4 battery?

    The Genuine L18M4PF4 Laptop Battery is compatible with multiple Lenovo IdeaPad series, including:

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

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

    Other compatible models: L18M4PF3, L18C4PF3, L18C4PF4

    Always check your laptop’s model number to ensure proper compatibility before purchase.

     

    2. What are the key specifications of the L18M4PF4 battery?

    Battery Type: Lithium-ion (Li-ion)

    Voltage: 15.44V

    Capacity: 50Wh / 3240mAh

    Cells: 3-Cell

    Part Numbers: 5B10W67194, L18M4PF3, L18C4PF3, L18C4PF4

    These specifications provide reliable performance, long-lasting battery life, and fast charging capability.

     

    3. How long does the L18M4PF4 battery last?

    Battery life depends on usage and device settings. On average, this battery can provide 4–6 hours of normal usage per full charge. Heavy tasks such as gaming or video editing may reduce battery life.

     

    4. How do I install the L18M4PF4 battery?

    Turn off your laptop and disconnect the charger.

    Remove the back cover of the laptop using the appropriate screwdriver.

    Carefully disconnect the old battery from the motherboard.

    Insert the L18M4PF4 battery and secure it in place.

    Reassemble the back cover and reconnect your laptop charger.

    Tip: Avoid using metal tools near the battery terminals to prevent short circuits.

     

    5. How to maximize the lifespan of this battery?

    Avoid overcharging: unplug once fully charged.

    Do not fully drain the battery frequently; maintain a 20–80% charge range.

    Store in a cool, dry environment if unused for a long period.

    Keep firmware and drivers updated for optimal power management.

     

    6. Is the L18M4PF4 battery genuine?

    Yes, this is a genuine Lenovo replacement battery, manufactured to meet OEM quality standards. It ensures safe operation, proper charging, and compatibility with Lenovo laptops.

     

    7. What warranty or support is provided?

    Most sellers offer a 12-month warranty covering manufacturing defects. Always verify warranty details with your seller before purchase.

     

    8. Can I replace the battery myself?

    Yes, it is designed for user replacement. Follow the installation steps carefully or seek professional assistance if unsure.

     

    9. Where can I buy the L18M4PF4 battery?

    The battery can be purchased from:

    Official Lenovo authorized dealers

    Trusted online stores such as Amazon, eBay, or specialized laptop battery retailers

     

    ✅ Summary

    The Genuine L18M4PF4 Laptop Battery is a reliable, high-quality replacement option for Lenovo IdeaPad C340 and S540 series laptops. With 50Wh capacity, 15.44V voltage, and OEM-level quality, it ensures longer laptop usage and safe operation.

     

    Focus on working not charging… 

    “3 years ago I ordered what I thought was a simple replacement battery for my laptop. Within weeks it overheated, lost charge quickly, and even damaged my charger port. I was shocked! I knew cheap batteries were risky, but I had no idea how quickly they could fail — and how dangerous they could be for my laptop. That experience inspired me to focus on reliable, safe, and long-lasting power solutions that people can truly trust.”

    Our world has become extremely dependent on laptops, yet too many people rely on cheap, low-quality batteries and adapters that fail quickly and create unnecessary e-waste. Many laptop users are aware of the frustration — shorter lifespans, overheating, constant replacements — and are searching for better solutions. But if we want to protect our devices, our data, and even our environment, we need to start choosing safer, longer-lasting, and more reliable power options.”

    CEO

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    Why YuYan?

    1. Where reliability meets performance

    UL (Underwriters Laboratories) and CE (Conformité Européenne) are globally recognized organizations that set the benchmark for product safety, performance, and compliance. Our laptop batteries and adapters are rigorously tested and certified to meet UL and CE standards, ensuring they are safe, reliable, and compatible with your device. This means every product you purchase from us has passed strict safety checks and delivers dependable power you can trust.

    2. UL & CE Certified Power Solutions

    Our laptop batteries and adapters are rigorously tested and certified to meet UL (Underwriters Laboratories) and CE (Conformité Européenne) safety standards. These certifications ensure that every product delivers consistent performance, protects against overheating, overcharging, and short circuits, and is fully compliant with international regulations. With UL & CE certified power solutions, you can trust that your laptop will run safely, efficiently, and without interruptions — at home, at work, or on the go.

    3. Sleek & Minimal Laptop Power

    Designed to complement your laptop, our batteries and adapters feature a sleek, modern look while delivering reliable power. Compact, minimal, and stylish — they fit perfectly into your workspace or on the go.

    4. Make Our Power Solutions Yours

    Don’t settle for unreliable batteries or adapters. Choose our certified, long-lasting power solutions and make them an essential part of your laptop experience — at home, at work, or on the go.

    5. Engineered for Compatibility: Powering Your Ecosystem.

    This addresses a major pain point. Customers need to know the charger works seamlessly not just with their laptop, but with their phone, tablet, and other USB-C devices. It positions YuYan as a unified power solution for all their tech, reducing cable clutter and complexity.

    6.Built to Last: Durability You Can Depend On.

    This directly counters the fear of buying a cheap product that breaks. It highlights quality construction (e.g., reinforced cables, robust connectors, premium materials) and implies a longer product lifecycle, which is a strong value argument over cheaper, disposable alternatives.

    7.Intelligent Charging: Protect Your Device's Battery Health.

    This showcases advanced technology. Modern chargers with intelligent chipsets can regulate voltage and current to avoid overcharging and overheating, which degrades batteries. This shows YuYan cares about protecting the customer's much more expensive laptop investment.

    8.Eco-Conscious Innovation: Responsible Power.

    This appeals to the environmentally conscious consumer. It can encompass energy-efficient operation (less wasted energy), the use of recyclable materials in packaging or products, and adherence to environmental standards like RoHS. This builds a positive, modern brand image.

    9.Globally Ready: A Worldwide Travel Companion.

    A huge benefit for travelers. If YuYan's chargers support 100-240V input voltage and come with interchangeable plugs (or a versatile design), this is a massive selling point. It tells the global citizen that this is the only charger they need to pack.

    For a Sustainable Laptop Future

    At YuYan, it all starts with a vision: to create reliable, safe, and long-lasting power solutions for laptops everywhere.

    Did you know that millions of low-quality laptop batteries and adapters fail every year, creating unnecessary e-waste and safety hazards? Immediate action needs to be taken to protect both your devices and the environment.

     

    That’s why YuYan was created — to provide high-quality, certified batteries and adapters that are safe, durable, and eco-conscious. We believe the best way to make a positive change is through the products people use every day. A portion of every purchase goes directly to supporting electronic waste reduction initiatives and responsible recycling programs.

     

    By choosing our products, you’re not only ensuring reliable power for your laptop — you’re helping reduce e-waste, protect the environment, and support a sustainable technology future. Thank you for making a difference!

    People Usually Ask

    1: How do I know if this battery/adapter fits my laptop?

    Please check your laptop model or the part number on your original battery/adapter. A full compatibility list is provided in the item description. If you are not sure, feel free to contact us before purchase.

    2: Is this an original (OEM) product?

    No, our products are brand-new high-quality replacement batteries/adapters, fully compatible with the original manufacturer’s specifications. All items are CE / FCC / RoHS certified.

    3: Does the voltage/capacity have to match exactly?

    Voltage (V) must match within ±0.5V of your original battery.

    Capacity (mAh/Wh) can be different: a higher capacity means longer runtime but may be slightly heavier.

    4: Do your batteries have a memory effect?

    No. Our batteries use Grade A Lithium-Ion/Polymer cells and are free from memory effect. You can charge or discharge at any time.

    5: Can I use an adapter with higher amperage or wattage?

    The voltage must match (e.g., 19V adapter for a 19V laptop).

    The amperage (A) and wattage (W) can be equal or higher, but not lower.

    6: How long is the battery lifespan?

    Typically 500–800 charge cycles, which is about 2–4 years under normal usage.

    7. How should I care for my battery?

    Avoid extreme heat or cold.

    Do not leave it plugged in for months without use.

    For long-term storage, keep the battery at 40–60% charge in a cool, dry place.

    8. Why does the battery arrive with partial charge?

    For shipping safety, all batteries are shipped with 30–60% charge. This is normal. Please fully charge the battery before first use..

    9. Do you provide warranty?

    Yes. All our batteries and adapters come with a 12-month warranty. If there is any quality issue, we offer replacement or refund.

    10. Don’t they cut a lot of trees to make these still?

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