Lenovo 45N1125 Battery for ThinkPad T440
Original price was: $187.99.$93.99Current price is: $93.99.
Direct-fit Lenovo 45N1125 replacement battery for select laptop models.
- 🔋 Voltage: 10.8V · Capacity: 48.0Wh / 4444mAh · Type: 6-Cell Li-ion
- 🔄 Replaces: 45N1125, 45N1127, 45N1124
- 💻 Fits: Lenovo Lenovo ThinkPad T440, ThinkPad T440, ThinkPad T 440S
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Keep your Lenovo Lenovo ThinkPad T440 notebook powered with this new 45N1125 replacement battery, a direct fit for select models. This 45N1125 battery is specifically designed for compatibility with Lenovo ThinkPad T440, ThinkPad T440S, ThinkPad X240, ThinkPad L450, ThinkPad T450, ThinkPad T450S, ThinkPad T460, ThinkPad T550, and ThinkPad T560 laptops. The replacement battery also cross-references with alternate part numbers 45N1127, 45N1124, and 45N1126, ensuring broad compatibility across multiple ThinkPad models. This makes the 45N1125 an ideal choice for users seeking a reliable power solution for their Lenovo notebook computer.
This direct-fit 45N1125 replacement delivers 10.8V at 48.0Wh capacity with 4444mAh power storage using premium lithium-ion cells in a 6-cell configuration. The correct voltage and equivalent capacity specifications ensure your laptop operates at optimal performance levels. High-quality cells provide reliable power delivery while maintaining the same form factor as your original battery, making installation straightforward and hassle-free.
With an estimated runtime of 4-6 hours under typical usage conditions, this 45N1125 battery supports extended work sessions and mobile productivity. Choose this replacement battery to extend the working life of your laptop. Whether you need a backup power source or a replacement for declining battery performance, this lithium-ion solution provides dependable energy storage for your ThinkPad system.
Technical Specifications
| Voltage | 10.8V |
| Capacity | 48.0Wh / 4444mAh |
| Cells | 6-cell Li-ion |
| Part Number | 45N1125 |
| Brand | Lenovo Compatible |
Key Features
- High-capacity 48.0Wh 6-cell design for extended runtime
- Direct-fit replacement matching original voltage and capacity
- Premium lithium-ion cells for consistent performance
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 | 10.8V |
|---|---|
| Brand | Lenovo Compatible |
| Capacity | 48.0Wh / 4444mAh |
| Part Number | 45N1125 |
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🚚 What is the cost of shipping?
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Please Note: Some oversized products or wholesale shipments may require alternative carriers based on size, weight, or destination.
⏱️ How long does shipping take?
- Standard USPS Delivery: Most items arrive within 3–5 business days after leaving our warehouse.
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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.
If you need a faster delivery option, reach out to us at cs@usabatteries.com, and we’ll check if a special arrangement can be made.
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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.
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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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If your tracking number shows “Delivered” but you haven’t received your package:
- Check around your home — porch, mailbox, garage, or any safe drop-off spots.
- Ask neighbors or household members in case someone accepted the package.
- Wait 24 hours — USPS sometimes scans items as delivered before arrival.
If your package is still missing after these steps:
- Contact your local USPS office. USPS can provide GPS delivery confirmation to determine where your package was left.
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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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