Lenovo 45N1742 replacement laptop battery
Lenovo 45N1742 Battery Original price was: $151.99.Current price is: $75.99.
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Lenovo 45N1741 Battery for ThinkPad T440

SKU: LN-45N1741

Original price was: $151.99.Current price is: $75.99.

Replacement Lenovo 45N1741 battery for select Lenovo laptops.

  • ๐Ÿ”‹ Voltage: 11.1V ยท Capacity: 34.0Wh / 3063mAh ยท Type: 3-Cell Li-ion
  • ๐Ÿ”„ Replaces: 45N1741, 00NY639, 45N1740
  • ๐Ÿ’ป Fits: Lenovo ThinkPad T440, ThinkPad T 440S, ThinkPad L450
  • Fast & Free Shipping
  • Money-Back Guarantee
  • 12 Months Warranty
  • Safe and Secure SSL Checkout

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Description

Restore your Lenovo laptop’s runtime with this high-quality 45N1741 replacement, compatible with ThinkPad T440. This 45N1741 battery works seamlessly with multiple ThinkPad series including ThinkPad T440S, ThinkPad L450, ThinkPad P50S, ThinkPad T450, ThinkPad T450S, ThinkPad T460, ThinkPad T550, ThinkPad T560, ThinkPad L460, and ThinkPad W550S models. The 45N1741 also cross-references with alternate part numbers 00NY639, 45N1740, 45N1742, and SB10K12721, ensuring broad compatibility across your Lenovo ThinkPad system. Whether you need part number 45N1750 or 45N1751 compatibility, this replacement delivers the reliable power your laptop requires for daily computing tasks.

This direct-fit 45N1741 replacement delivers 11.1V output with 34.0Wh capacity and 3063mAh rating through its 3-cell lithium-ion design. The battery features Samsung cells that provide the correct voltage specification for your ThinkPad system. This equivalent replacement matches the original factory specifications, ensuring proper charging cycles and stable power delivery for your laptop’s components.

Typical runtime with this 45N1741 replacement ranges from 2 to 4 hours depending on your usage patterns and system configuration. This replacement is the correct fit when the original battery reaches the end of its useful life. The lithium-ion chemistry provides consistent power output for productivity tasks, web browsing, and office applications throughout your workday.


Technical Specifications

Voltage 11.1V
Capacity 34.0Wh / 3063mAh
Cells 3-cell Li-ion
Part Number 45N1741
Brand Lenovo Compatible

Compatible Part Numbers

45N1741
00NY639
45N1740
45N1743
45N1742
SB10K12721
45N1750
45N1751
45N1748
45N1749


Compatible Laptop Models

ThinkPad T440
ThinkPad T440s
ThinkPad L450
ThinkPad P50s
ThinkPad T440 (Core i5)
ThinkPad T440 (Core i7)
ThinkPad T450
ThinkPad T450s
ThinkPad T460
ThinkPad T550
ThinkPad T560
ThinkPad L460
ThinkPad W550s
ThinkPad X260

Compatible with the models, series, and devices listed above; however, this is
not a complete compatibility list, and additional unlisted models may also be
supported. If your device is not shown, please email us at cs@usabatteries.com
for compatibility confirmation.

Additional information
Voltage11.1V
BrandLenovo Compatible
Capacity34.0Wh / 3063mAh
Part Number45N1741
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Shipping FAQ

At USA Batteries, we are committed to providing fast, free, and reliable shipping on every order. Below, youโ€™ll find detailed information about our shipping process, delivery timelines, carriers, and what to do if your order experiences an issue.


๐Ÿšš What is the cost of shipping?

Shipping is completely free on all orders โ€” no minimum purchase requirements, no hidden fees, and no surprise charges at checkout. We believe in transparent pricing so you can shop with confidence.


๐Ÿ“ฌ Which shipping carriers do we use?

Most orders are shipped via USPS (United States Postal Service), which provides fast and affordable nationwide delivery. For large, heavy, or bulk orders, we may use FedEx or UPS to ensure safe and efficient handling.

Please Note: Some oversized products or wholesale shipments may require alternative carriers based on size, weight, or destination.


โฑ๏ธ How long does shipping take?

  • Standard USPS Delivery:ย Most items arrive withinย 3โ€“5 business daysย after leaving our warehouse.
  • Order Processing:ย Orders are typically processed and shipped withinย 24 business hoursย of purchase.
  • Delays:ย Shipping times may be longer during weekends, public holidays, or severe weather conditions.

If your order is time-sensitive, please contact us before purchasing, and weโ€™ll do our best to assist.


โšก Do you offer expedited shipping?

Currently, we do not offer paid expedited shipping options. However, many of our USPS shipments use Priority Mail, which generally arrives within 2โ€“3 business days for most U.S. locations.

If you need a faster delivery option, reach out to us at cs@usabatteries.com, and weโ€™ll check if a special arrangement can be made.


๐ŸŒŽ Do you ship internationally?

At this time, we only ship within the United States. We do not offer international delivery options.


๐Ÿ“ฎ Can you deliver to PO Boxes?

Yes! We gladly deliver to PO Boxes, as USPS handles most of our shipments.
If your order requires FedEx or UPS (usually for larger packages), we may contact you for a physical street address.


๐Ÿ” How can I track my order?

You will receive an email with a tracking number as soon as your order ships.
You can also check your order status anytime on our Track Your Order page.


๐Ÿ“ฆ Lost or Missing Packages

If your tracking number shows โ€œDeliveredโ€ but you havenโ€™t received your package:

  1. Check around your homeย โ€” porch, mailbox, garage, or any safe drop-off spots.
  2. Ask neighbors or household membersย in case someone accepted the package.
  3. Wait 24 hoursย โ€” USPS sometimes scans items as delivered before arrival.

If your package is still missing after these steps:

  • Contact yourย local USPS office. USPS can provideย GPS delivery confirmationย to determine where your package was left.
  • Contact us atย cs@usabatteries.comย or viaย Live Chat. We will assist you in opening an investigation and help retrieve GPS scan data if necessary.

Insurance Claims: All USPS shipments are insured. Any claims for lost or damaged packages must be filed with USPS. We will guide you through the process to ensure a resolution.


โœ… Our Commitment

Your satisfaction is our priority. If you experience any shipping issues, we will work closely with USPS or the relevant carrier to resolve the situation promptly and ensure your order reaches you safely.

The USABatteries.com Guarantee

Your satisfaction is our priority. Every battery from USABatteries.com is rigorously tested and backed by a comprehensive 1-Year Warranty. We are so confident in our quality that we offer a Risk-Free 30-Day Money-Back Guarantee: if you aren't completely happy within the first month, we will cover the return shipping costs ourselves. Quality power, zero risk.

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