Toshiba PA3905U-1BRS Compatible Laptop Battery 10.8V (4400mAh / 48Wh) Li-ion

SKU: LTS231-BP-K004
Regular price C$39.00
In stock
Orders placed after 3:00 PM (PT) will be processed on the next business day.
  • Compatible Brands Toshiba
  • Model/OPN PA3905U-1BRS
  • 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 Toshiba PA3905U-1BRS is available for C$39.00 . 10.8V · 4400mAh / 48Wh · Conventional Li-ion.

Compatible Model
Toshiba Tecra Series Tecra R850Toshiba Tecra Series Tecra R850-10RToshiba Tecra Series Tecra R850-10WToshiba Tecra Series Tecra R850-119Toshiba Tecra Series Tecra R850-11DToshiba Tecra Series Tecra R850-11PToshiba Tecra Series Tecra R850-12FToshiba Tecra Series Tecra R850-140Toshiba Tecra Series Tecra R850-S8500Toshiba Tecra Series Tecra R850-S8501Toshiba Tecra Series Tecra R850-S8510Toshiba Tecra Series Tecra R850-S8511Toshiba Tecra Series Tecra R850-S8512Toshiba Tecra Series Tecra R850-S8513Toshiba Tecra Series Tecra R850-S8515Toshiba Tecra Series Tecra R850-S8519Toshiba Tecra Series Tecra R850-S8520Toshiba Tecra Series Tecra R850-S8522Toshiba Tecra Series Tecra R850-S8529Toshiba Tecra Series Tecra R850-S8530Toshiba Tecra Series Tecra R850-S8532Toshiba Tecra Series Tecra R850-S8540Toshiba Tecra Series Tecra R850-S8550Toshiba Tecra Series Tecra R850-S8552Toshiba Tecra Series Tecra R850-ST8500Toshiba Tecra Series Tecra R850-ST8501Toshiba Tecra Series Tecra R850-ST8502Toshiba Tecra Series Tecra R950Toshiba Tecra Series Tecra R950-00GToshiba Tecra Series Tecra R950-00HToshiba Tecra Series Tecra R950-00LToshiba Tecra Series Tecra R950-00MToshiba Tecra Series Tecra R950-00NToshiba Tecra Series Tecra R950-02EToshiba Tecra Series Tecra R950-02TToshiba Tecra Series Tecra R950-02UToshiba Tecra Series Tecra R950-02VToshiba Tecra Series Tecra R950-036Toshiba Tecra Series Tecra R950-037-1Toshiba Tecra Series Tecra R950-037-2Toshiba Tecra Series Tecra R950-038Toshiba Tecra Series Tecra R950-106Toshiba Tecra Series Tecra R950-10UToshiba Tecra Series Tecra R950-10VToshiba Tecra Series Tecra R950-11EToshiba Tecra Series Tecra R950-11FToshiba Tecra Series Tecra R950-122Toshiba Tecra Series Tecra R950-123Toshiba Tecra Series Tecra R950-12QToshiba Tecra Series Tecra R950-153Toshiba Tecra Series Tecra R950-155Toshiba Tecra Series Tecra R950-18KToshiba Tecra Series Tecra R950-BT9500Toshiba Tecra Series Tecra R950-S9520Toshiba Tecra Series Tecra R950-S9521Toshiba Tecra Series Tecra R950-S9530Toshiba Tecra Series Tecra R950-S9540Toshiba Tecra Series Tecra R950-S9541Toshiba Tecra Series Tecra R950-SMBG1XToshiba Tecra Series Tecra R950-SMBGX1Toshiba Tecra Series Tecra R950-SMBGX2Toshiba Tecra Series Tecra R950-SMBGX3Toshiba Tecra Series Tecra R950-SMBGX4Toshiba Tecra Series Tecra R950-SMBN1XToshiba Tecra Series Tecra R950-SMBN22Toshiba Tecra Series Tecra R950-SMBN23Toshiba Tecra Series Tecra R950-SMBNX1Toshiba Tecra Series Tecra R950-SMBNX2Toshiba Tecra Series Tecra R950-SMBNX3Toshiba Tecra Series Tecra R950-SMBNX4Toshiba Tecra Series Tecra R950-ST2N01Toshiba Tecra Series Tecra R950-ST3N01Toshiba Tecra Series Tecra R950-W9540Toshiba Satellite Series Satellite R850Toshiba Satellite Series Satellite R850-10HToshiba Satellite Series Satellite R850-127Toshiba Satellite Series Satellite R850-12EToshiba Satellite Series Satellite R850-12QToshiba Satellite Series Satellite R850-12VToshiba Satellite Series Satellite R850-12XToshiba Satellite Series Satellite R850-14TToshiba Satellite Series Satellite R850-153Toshiba Satellite Series Satellite R850-15CToshiba Satellite Series Satellite R850-15XToshiba Satellite Series Satellite R850-169Toshiba Satellite Series Satellite R850-1L0Toshiba Satellite Pro Series Satellite Pro R850Toshiba Satellite Pro Series Satellite Pro R850-10VToshiba Satellite Pro Series Satellite Pro R850-13QToshiba Satellite Pro Series Satellite Pro R850-143Toshiba Satellite Pro Series Satellite Pro R850-15EToshiba Satellite Pro Series Satellite Pro R850-15FToshiba Satellite Pro Series Satellite Pro R850-16HToshiba Dynabook Series Dynabook R751Toshiba Dynabook Series Dynabook R752Toshiba Dynabook Series Dynabook R752/F
Original Part Number
PABAS245 PA3905U-1BRS PA3904U-1BRS PA3904U-1BAS PA3905U-1BAS PABAS246
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.