Lenovo 45N1741 Battery for ThinkPad T440
$151.99 Original price was: $151.99.$75.99Current price is: $75.99.
Replacement Lenovo 45N1741 battery for select Lenovo laptops.
- 🔋 Voltage: 11.1V · Capacity: 34.0Wh / 3063mAh · Type: 3-Cell Li-ion
- 🔄 Replaces: 45N1741, 00NY639, 45N1740
- 💻 Fits: Lenovo ThinkPad T440, ThinkPad T 440S, ThinkPad L450
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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
Compatible Laptop Models
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.
| Voltage | 11.1V |
|---|---|
| Brand | Lenovo Compatible |
| Capacity | 34.0Wh / 3063mAh |
| Part Number | 45N1741 |
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🚚 What is the cost of shipping?
Shipping is completely free on all orders — no minimum purchase requirements, no hidden fees, and no surprise charges at checkout. We believe in transparent pricing so you can shop with confidence.
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⏱️ How long does shipping take?
- Standard USPS Delivery: Most items arrive within 3–5 business days after leaving our warehouse.
- Order Processing: Orders are typically processed and shipped within 24 business hours of purchase.
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Currently, we do not offer paid expedited shipping options. However, many of our USPS shipments use Priority Mail, which generally arrives within 2–3 business days for most U.S. locations.
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At this time, we only ship within the United States. We do not offer international delivery options.
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If your order requires FedEx or UPS (usually for larger packages), we may contact you for a physical street address.
🔍 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.
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- Check around your home — porch, mailbox, garage, or any safe drop-off spots.
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- Wait 24 hours — USPS sometimes scans items as delivered before arrival.
If your package is still missing after these steps:
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✅ 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.
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