Battpit Canada provides reliable replacement laptop batteries, laptop AC adapters, chargers, and power accessories for customers across Canada.
Shop 25,000+ compatible laptop batteries and power adapters for HP, Dell, Lenovo, Apple, Asus, and more. 100% Canadian-owned. Ships from Canada. No import fees.
buying a spare charger, or ordering accessories for business use, Battpit focuses on dependable products, clear compatibility information, and convenient Canadian shipping.
This compatible replacement laptop battery
for Lenovo45N1145
is available for C$55.00
.
10.8V
· 4400 mAh / 48Wh
· Conventional Li-ion.
Compatible Products for Your Device
Compatible Model
Lenovo W Series ThinkPad W540 20BH001BUSLenovo W Series ThinkPad W540 20BH001CUSLenovo W Series ThinkPad W540 20BH001DUSLenovo W Series ThinkPad W540 20BH001XUSLenovo W Series ThinkPad W541 20EF000MUSLenovo W Series ThinkPad W541 20EF000RLenovo W Series ThinkPad W541 20EF000WLenovo W Series ThinkPad W541 20EF000XLenovo W Series ThinkPad W541 20EF0011Lenovo W Series ThinkPad W541 20EF0012Lenovo W Series ThinkPad W541 20EF001EUSLenovo W Series ThinkPad W541 20EF001WLenovo W Series ThinkPad W541 20EF001YLenovo W Series ThinkPad W541 20EF0020Lenovo W Series ThinkPad W541 20EF002LUSLenovo W Series ThinkPad W541 20EF002NUSLenovo W Series ThinkPad W541 20EF002QUSLenovo W Series ThinkPad W541 20EF002RUSLenovo W Series ThinkPad W541 20EG0001USLenovo W Series ThinkPad W541 20EG0003USLenovo W Series ThinkPad W541 20EG0005USLenovo W Series ThinkPad W541 20EG0007Lenovo W Series ThinkPad W541 20EG0008Lenovo W Series ThinkPad W541 20EG0009Lenovo W Series ThinkPad W541 20EG000AUSLenovo W Series ThinkPad W541 20EG000BLenovo W Series ThinkPad W541 20EG000BUSLenovo W Series ThinkPad W541 20EG000DUSLenovo W Series ThinkPad W541 20EG000ELenovo W Series ThinkPad W541 20EG000HUSLenovo W Series ThinkPad W541 20EG0020Lenovo W Series ThinkPad W541 20EG0041Lenovo ThinkPad T Series ThinkPad T440p 20AN000NUSLenovo ThinkPad T Series ThinkPad T440p 20AN000PUSLenovo ThinkPad T Series ThinkPad T440p 20AN006CUSLenovo ThinkPad T Series ThinkPad T440p 20AN006DUSLenovo ThinkPad T Series ThinkPad T440p 20AN006EUSLenovo ThinkPad T Series ThinkPad T440p 20AN006GUSLenovo ThinkPad T Series ThinkPad T440p 20AN0076Lenovo ThinkPad T Series ThinkPad T440p 20AN0096USLenovo ThinkPad T Series ThinkPad T440p 20AN009ALenovo ThinkPad T Series ThinkPad T440p 20AN009BLenovo ThinkPad T Series ThinkPad T440p 20AN009CUSLenovo ThinkPad T Series ThinkPad T440p 20AN009DLenovo ThinkPad T Series ThinkPad T440p 20AN00A4Lenovo ThinkPad T Series ThinkPad T440p 20AN00ANUSLenovo ThinkPad T Series ThinkPad T440p 20AN00BXLenovo ThinkPad T Series ThinkPad T440p 20AN00CDLenovo ThinkPad T Series ThinkPad T440p 20AN00DCUSLenovo ThinkPad T Series ThinkPad T440p 20AN00DDLenovo ThinkPad T Series ThinkPad T440p 20AN00E3Lenovo ThinkPad T Series ThinkPad T440p 20AWLenovo ThinkPad T Series ThinkPad T440p 20AW0006USLenovo ThinkPad T Series ThinkPad T440p 20AW0009Lenovo ThinkPad T Series ThinkPad T440p 20AW0009USLenovo ThinkPad T Series ThinkPad T440p 20AW000ALenovo ThinkPad T Series ThinkPad T440p 20AW000DUSLenovo ThinkPad T Series ThinkPad T440p 20AW000GLenovo ThinkPad T Series ThinkPad T440p 20AW000HUSLenovo ThinkPad T Series ThinkPad T440p 20AW000MLenovo ThinkPad T Series ThinkPad T440p 20AW000PLenovo ThinkPad T Series ThinkPad T440p 20AW000PUSLenovo ThinkPad T Series ThinkPad T440p 20AW0046USLenovo ThinkPad T Series ThinkPad T440p 20AW0048Lenovo ThinkPad T Series ThinkPad T440p 20AW004AUSLenovo ThinkPad T Series ThinkPad T440p 20AW004BLenovo ThinkPad T Series ThinkPad T440p 20AW004DUSLenovo ThinkPad T Series ThinkPad T440p 20AW004EUSLenovo ThinkPad T Series ThinkPad T440p 20AW004HLenovo ThinkPad T Series ThinkPad T440p 20AW004LUSLenovo ThinkPad T Series ThinkPad T440p 20AW004MLenovo ThinkPad T Series ThinkPad T440p 20AW005ALenovo ThinkPad T Series ThinkPad T440p 20AW005DLenovo ThinkPad T Series ThinkPad T440p 20AW0090USLenovo ThinkPad T Series ThinkPad T440p 20AW0092USLenovo ThinkPad T Series ThinkPad T440p 20AW0093Lenovo ThinkPad T Series ThinkPad T440p 20AW0094Lenovo ThinkPad T Series ThinkPad T440p 20AW00B1Lenovo ThinkPad T Series ThinkPad T540p 20BELenovo ThinkPad T Series ThinkPad T540p 20BE003JUSLenovo ThinkPad T Series ThinkPad T540p 20BE003KUSLenovo ThinkPad T Series ThinkPad T540p 20BE003YLenovo ThinkPad T Series ThinkPad T540p 20BE0042Lenovo ThinkPad T Series ThinkPad T540p 20BE004BLenovo ThinkPad T Series ThinkPad T540p 20BE0060Lenovo ThinkPad T Series ThinkPad T540p 20BE0061Lenovo ThinkPad T Series ThinkPad T540p 20BE0062Lenovo ThinkPad T Series ThinkPad T540p 20BE0063Lenovo ThinkPad T Series ThinkPad T540p 20BE008KLenovo ThinkPad T Series ThinkPad T540p 20BE008MLenovo ThinkPad T Series ThinkPad T540p 20BE008NLenovo ThinkPad T Series ThinkPad T540p 20BE00B4Lenovo ThinkPad T Series ThinkPad T540p 20BE00B9Lenovo ThinkPad T Series ThinkPad T540p 20BE00BBLenovo ThinkPad T Series ThinkPad T540p 20BE00BULenovo ThinkPad T Series ThinkPad T540p 20BE00CBLenovo ThinkPad T Series ThinkPad T540p 20BE00CDLenovo ThinkPad T Series ThinkPad T540p 20BE00CXUSLenovo ThinkPad T Series ThinkPad T540p 20BEA0A1HHLenovo ThinkPad T Series ThinkPad T540p 20BF0014USLenovo ThinkPad T Series ThinkPad T540p 20BF0015USLenovo ThinkPad T Series ThinkPad T540p 20BF001DUSLenovo ThinkPad T Series ThinkPad T540p 20BF001FUSLenovo ThinkPad T Series ThinkPad T540p 20BF001GUSLenovo ThinkPad T Series ThinkPad T540p 20BF001JUSLenovo ThinkPad T Series ThinkPad T540p 20BF001LUSLenovo ThinkPad T Series ThinkPad T540p 20BF001MUSLenovo ThinkPad T Series ThinkPad T540p 20BF001XUSLenovo ThinkPad T Series ThinkPad T540p 20BF0020USLenovo ThinkPad T Series ThinkPad T540p 20BF0021USLenovo ThinkPad T Series ThinkPad T540p 20BF002EUSLenovo ThinkPad T Series ThinkPad T540p 20BF002FLenovo ThinkPad T Series ThinkPad T540p 20BF002JUSLenovo ThinkPad T Series ThinkPad T540p 20BF002LLenovo ThinkPad T Series ThinkPad T540p 20BF002MLenovo ThinkPad T Series ThinkPad T540p 20BF002SLenovo ThinkPad T Series ThinkPad T540p 20BF002TUSLenovo ThinkPad T Series ThinkPad T540p 20BF002ULenovo ThinkPad T Series ThinkPad T540p 20BF002VLenovo ThinkPad T Series ThinkPad T540p 20BF002WUSLenovo ThinkPad T Series ThinkPad T540p 20BF0030Lenovo ThinkPad T Series ThinkPad T540p 20BF0036USLenovo ThinkPad T Series ThinkPad T540p 20BF0037Lenovo ThinkPad T Series ThinkPad T540p 20BF0039Lenovo ThinkPad L Series ThinkPad L440Lenovo ThinkPad L Series ThinkPad L440 20ASLenovo ThinkPad L Series ThinkPad L440 20AS000ULenovo ThinkPad L Series ThinkPad L440 20AS000YLenovo ThinkPad L Series ThinkPad L440 20AS0010USLenovo ThinkPad L Series ThinkPad L440 20AS002EUSLenovo ThinkPad L Series ThinkPad L440 20AS002GUSLenovo ThinkPad L Series ThinkPad L440 20AS002JUSLenovo ThinkPad L Series ThinkPad L440 20AS002UUSLenovo ThinkPad L Series ThinkPad L440 20AS002VUSLenovo ThinkPad L Series ThinkPad L440 20AS0031USLenovo ThinkPad L Series ThinkPad L440 20AS005UUSLenovo ThinkPad L Series ThinkPad L440 20AS0063Lenovo ThinkPad L Series ThinkPad L440 20AS0064Lenovo ThinkPad L Series ThinkPad L440 20AS0065Lenovo ThinkPad L Series ThinkPad L440 20AS0065USLenovo ThinkPad L Series ThinkPad L440 20AS007UUSLenovo ThinkPad L Series ThinkPad L440 20AS007VUSLenovo ThinkPad L Series ThinkPad L440 20ATLenovo ThinkPad L Series ThinkPad L440 20AT000AUSLenovo ThinkPad L Series ThinkPad L440 20AT0028USLenovo ThinkPad L Series ThinkPad L440 20AT002DUSLenovo ThinkPad L Series ThinkPad L440 20AT002EUSLenovo ThinkPad L Series ThinkPad L440 20AT002JUSLenovo ThinkPad L Series ThinkPad L440 20AT002RUSLenovo ThinkPad L Series ThinkPad L440 20AT002WUSLenovo ThinkPad L Series ThinkPad L440 20AT0030Lenovo ThinkPad L Series ThinkPad L440 20AT0042USLenovo ThinkPad L Series ThinkPad L440 20AT004KLenovo ThinkPad L Series ThinkPad L440 20AT004ULenovo ThinkPad L Series ThinkPad L440 20AT004VLenovo ThinkPad L Series ThinkPad L440 20AT004XLenovo ThinkPad L Series ThinkPad L440 20AT0056Lenovo ThinkPad L Series ThinkPad L440 20AT005DLenovo ThinkPad L Series ThinkPad L440 20AT005ELenovo ThinkPad L Series ThinkPad L440 20AT005HLenovo ThinkPad L Series ThinkPad L440 20AT005WUSLenovo ThinkPad L Series ThinkPad L540Lenovo ThinkPad L Series ThinkPad L540 20AU000YUSLenovo ThinkPad L Series ThinkPad L540 20AU002NLenovo ThinkPad L Series ThinkPad L540 20AU002PLenovo ThinkPad L Series ThinkPad L540 20AU002SLenovo ThinkPad L Series ThinkPad L540 20AU002TUSLenovo ThinkPad L Series ThinkPad L540 20AU002VUSLenovo ThinkPad L Series ThinkPad L540 20AU0030Lenovo ThinkPad L Series ThinkPad L540 20AU0036Lenovo ThinkPad L Series ThinkPad L540 20AU0038USLenovo ThinkPad L Series ThinkPad L540 20AU003CLenovo ThinkPad L Series ThinkPad L540 20AU003DLenovo ThinkPad L Series ThinkPad L540 20AU003HLenovo ThinkPad L Series ThinkPad L540 20AU003HUSLenovo ThinkPad L Series ThinkPad L540 20AU003KUSLenovo ThinkPad L Series ThinkPad L540 20AU003LUSLenovo ThinkPad L Series ThinkPad L540 20AU006CUSLenovo ThinkPad L Series ThinkPad L540 20AU006DUSLenovo ThinkPad L Series ThinkPad L540 20AV000LUSLenovo ThinkPad L Series ThinkPad L540 20AV000NUSLenovo ThinkPad L Series ThinkPad L540 20AV000QUSLenovo ThinkPad L Series ThinkPad L540 20AV0024USLenovo ThinkPad L Series ThinkPad L540 20AV0028USLenovo ThinkPad L Series ThinkPad L540 20AV002GUSLenovo ThinkPad L Series ThinkPad L540 20AV002KUSLenovo ThinkPad L Series ThinkPad L540 20AV002MUSLenovo ThinkPad L Series ThinkPad L540 20AV002QUSLenovo ThinkPad L Series ThinkPad L540 20AV002RUSLenovo ThinkPad L Series ThinkPad L540 20AV002WLenovo ThinkPad L Series ThinkPad L540 20AV0033Lenovo ThinkPad L Series ThinkPad L540 20AV005FLenovo ThinkPad L Series ThinkPad L540 20AV005JLenovo ThinkPad L Series ThinkPad L540 20AV006BLenovo ThinkPad L Series ThinkPad L540 20AV006CLenovo ThinkPad L Series ThinkPad L540 20AV006JLenovo ThinkPad L Series ThinkPad L540 20AV006SLenovo ThinkPad L Series ThinkPad L540 20AV006TLenovo ThinkPad L Series ThinkPad L540 20AV0082USLenovo ThinkPad L Series ThinkPad L540 20AV0083US
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
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 CompliantHelps reduce restricted hazardous substances in electronic products.
CE
CE MarkedDesigned to meet applicable safety and quality requirements.
UL
UL Recognized ComponentsSelected products may use UL recognized cells, components, or protection circuits.
ULC
ULC Safety StandardSupports 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.
