Lenovo 45N1761 Compatible Laptop Battery 10.8V (4400mAh / 48Wh) Li-ion

SKU: LLN250-BP-K004
Regular price C$55.00
In stock
Orders placed after 3:00 PM (PT) will be processed on the next business day.
  • Compatible Brands Lenovo
  • Model/OPN 45N1761
  • Cell Type Conventional Li-ion
  • Capacity 4400mAh / 48Wh
  • Output Voltage 10.8V
  • Warranty 1 Year
Ships from Canada • Fast local delivery

This compatible replacement laptop battery for Lenovo 45N1761 is available for C$55.00 . 10.8V · 4400mAh / 48Wh · Conventional Li-ion.

Compatible Model
Lenovo ThinkPad Edge Series ThinkPad Edge E550Lenovo E Series - Lenovo ThinkPad E550Lenovo E Series - Lenovo ThinkPad E550 20DF002WUSLenovo E Series - Lenovo ThinkPad E550 20DF002XUSLenovo E Series - Lenovo ThinkPad E550 20DF002YUSLenovo E Series - Lenovo ThinkPad E550 20DF0030USLenovo E Series - Lenovo ThinkPad E550 20DF0031USLenovo E Series - Lenovo ThinkPad E550 20DF0032USLenovo E Series - Lenovo ThinkPad E550 20DF0033USLenovo E Series - Lenovo ThinkPad E550 20DF0034USLenovo E Series - Lenovo ThinkPad E550 20DF0035USLenovo E Series - Lenovo ThinkPad E550 20DF0036USLenovo E Series - Lenovo ThinkPad E550 20DF0037USLenovo E Series - Lenovo ThinkPad E550 20DF0039USLenovo E Series - Lenovo ThinkPad E550 20DF003AUSLenovo E Series - Lenovo ThinkPad E550 20DF003BUSLenovo E Series - Lenovo ThinkPad E550 20DF003DUSLenovo E Series - Lenovo ThinkPad E550 20DF003EUSLenovo E Series - Lenovo ThinkPad E550 20DF003FUSLenovo E Series - Lenovo ThinkPad E550 20DF003GUSLenovo E Series - Lenovo ThinkPad E550 20DF003HUSLenovo E Series - Lenovo ThinkPad E550 20DF003JUSLenovo E Series - Lenovo ThinkPad E550 20DF003KUSLenovo E Series - Lenovo ThinkPad E550 20DF003LUSLenovo E Series - Lenovo ThinkPad E550 20DF003MUSLenovo E Series - Lenovo ThinkPad E550 20DF003NUSLenovo E Series - Lenovo ThinkPad E550 20DF003PUSLenovo E Series - Lenovo ThinkPad E550 20DF003QUSLenovo E Series - Lenovo ThinkPad E550 20DF003RUSLenovo E Series - Lenovo ThinkPad E550 20DF003SUSLenovo E Series - Lenovo ThinkPad E550 20DF003TUSLenovo E Series - Lenovo ThinkPad E550 20DF003UUSLenovo E Series - Lenovo ThinkPad E550 20DF003VUSLenovo E Series - Lenovo ThinkPad E550 20DF003WUSLenovo E Series - Lenovo ThinkPad E550 20DF003XUSLenovo E Series - Lenovo ThinkPad E550 20DF003YUSLenovo E Series - Lenovo ThinkPad E550 20DF0041USLenovo E Series - Lenovo ThinkPad E550 20DF0042USLenovo E Series - Lenovo ThinkPad E550 20DF0043USLenovo E Series - Lenovo ThinkPad E550 20DF0044USLenovo E Series - Lenovo ThinkPad E550 20DF0045USLenovo E Series - Lenovo ThinkPad E550 20DF0046USLenovo E Series - 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Lenovo ThinkPad E555 20DH000QLenovo E Series - Lenovo ThinkPad E555 20DH000RLenovo E Series - Lenovo ThinkPad E555 20DH000TLenovo E Series - Lenovo ThinkPad E555 20DH000WLenovo E Series - Lenovo ThinkPad E555 20DH000XLenovo E Series - Lenovo ThinkPad E555 20DH001WLenovo E Series - Lenovo ThinkPad E555 20DH001XLenovo E Series - Lenovo ThinkPad E555 20DH0020Lenovo E Series - Lenovo ThinkPad E555 20DH0021Lenovo E Series - Lenovo ThinkPad E555 20DH0026Lenovo E Series - Lenovo ThinkPad E555 20DH0027Lenovo E Series - Lenovo ThinkPad E555 20DH0028USLenovo E Series - Lenovo ThinkPad E555 20DH0029USLenovo E Series - Lenovo ThinkPad E555 20DH002AUSLenovo E Series - Lenovo ThinkPad E555 20DH002BUSLenovo E Series - Lenovo ThinkPad E555 20DH002CUSLenovo E Series - Lenovo ThinkPad E555 20DH002EUSLenovo E Series - Lenovo ThinkPad E555 20DH002FUSLenovo E Series - Lenovo ThinkPad E555 20DH002GUSLenovo E Series - Lenovo ThinkPad E555 20DH002HUSLenovo E Series - Lenovo ThinkPad E555 20DH002JUSLenovo E Series - 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Original Part Number
45N1763 45N1758 45N1760 45N1762 4X50G59217 45N1759 45N1761
How can I confirm a replacement laptop battery will fit?
The best way is to match the part number printed on your current battery. Then verify the voltage, and compare the battery shape plus connector location with the product photos and specs.
How can I find my laptop model on a Windows laptop?
If you are using a Windows laptop, you can find your laptop model using System Information:

Step 1: Press Windows + R to open the Run window.
Step 2: Type msinfo32 and click OK.
Step 3: In the System Summary section, find System Model in the right pane.

This model information helps ensure you select the correct replacement battery.
Where do I find the battery part number?
Power off the laptop, unplug the charger, and remove the battery if it’s removable. The part number is printed on the label on the battery itself—use that to confirm compatibility.
Can I use a battery with a different voltage?
In most cases, no—battery voltage should match the original. Some labels are equivalent (10.8V = 11.1V, and 14.4V = 14.8V), but other voltage differences are not compatible.
What should I check before buying a replacement online?
Start with the original battery part number and voltage. After that, compare size and shape, connector type and position, latch/clip placement, and orientation using product photos and details.
Can I search by laptop model instead of battery part number?
The laptop model helps narrow results, but the battery part number is more accurate. One laptop model can use multiple battery versions, so matching the printed part number is recommended.
Any quick tips to improve laptop battery runtime?
Turn on Power Saver/Battery Saver, lower screen brightness, close unused apps and tabs, disable Wi-Fi/Bluetooth when you don’t need them, and keep vents clear to reduce heat.

Picking the correct replacement battery (and adapter, if needed) matters for safety and performance. Battpit stocks a wide range of compatible part numbers and models across major laptop brands. Use the checklist below before you place your order:

1. Identify Your Laptop Model

  • Check the label on the bottom of the laptop or your system information for the exact model.
  • If you’re purchasing an adapter, verify the input requirements shown on your laptop label (voltage/current).

2. Match the Battery Part Number

Always shut down the laptop before removing the battery. The part number printed on the battery label is the most reliable way to confirm the correct replacement.

3. Common Part Number Examples

Brands often use predictable formats. Here are a few examples to help you recognize them:

HP / Compaq:
123456-001
Sony:
PCGA-BP12, VGP-BP1
Dell:
312-1234, 1234P
IBM / Lenovo:
02K1234, 08K1234
Toshiba:
PA1234U-1BRS

4. Compare the Physical Fit

Double-check the overall shape, connector type and connector position, plus the latch/lock location and orientation. Compare these with product photos before ordering.

5. Voltage Notes

Some laptops have multiple battery options with different voltages (for example, 11.1V vs 14.8V). These are not interchangeable. Always match the voltage printed on your original battery.

  • Li-ion 10.8V is equivalent to 11.1V.
  • Li-ion 14.4V is equivalent to 14.8V.

Example Labels

Example battery label showing part number and voltage
Safety & Compliance

Certified Quality You Can Trust

Battpit Canada replacement laptop batteries and AC adapters are selected with safety, compatibility, and compliance in mind. Products may meet common industry standards including RoHS, CE, UL, and ULC where applicable.

RoHS
RoHS Compliant Helps reduce restricted hazardous substances in electronic products.
CE
CE Marked Designed to meet applicable safety and quality requirements.
UL
UL Recognized Components Selected products may use UL recognized cells, components, or protection circuits.
ULC
ULC Safety Standard Supports safety confidence for products supplied to Canadian customers.
Why this matters: These compliance marks help customers choose a reliable replacement laptop battery, laptop charger, or AC adapter with built-in safety features such as over-charge, over-current, over-voltage, and short-circuit protection.