Home » Dell RG049 Compatible Laptop Battery 11.1V (4400mAh / 49Wh) Li-ion
Dell RG049 Compatible Laptop Battery 11.1V (4400mAh / 49Wh) Li-ion
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Dell RG049 Compatible Laptop Battery 11.1V (4400mAh / 49Wh) Li-ion
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Dell RG049 Compatible Laptop Battery 11.1V (4400mAh / 49Wh) Li-ion

SKU: LDE222-BP-K019
C$37.00
In stock
Orders placed after 3:00 PM (PT) will be processed on the next business day.

More Compatible Options

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  • Compatible Brands Dell
  • Model/OPN RG049
  • Cell Type Conventional Li-ion
  • Capacity 4400mAh / 49Wh
  • Output Voltage 11.1V
  • Warranty 1 Year
Ships from Canada • Fast local delivery

This compatible replacement laptop battery for Dell RG049 is available for C$37.00 . 11.1V · 4400mAh / 49Wh · Conventional Li-ion.

Compatible Model
Dell Precision Series Precision M 2400 N SeriesDell Precision Series Precision M2400Dell Precision Series Precision M4400Dell Precision Series Precision M4500Dell Precision Series Precision Workstation M2400 64Dell Precision Series Precision WorkStations M2400 Dell Precision Series Precision WorkStations M4400Dell Latitude Series Latitude 6400 ATGDell Latitude Series Latitude E6400Dell Latitude Series Latitude E6400 XFRDell Latitude Series Latitude E6400ATGDell Latitude Series Latitude E6410Dell Latitude Series Latitude E6410 ATGDell Latitude Series Latitude E6500 Dell Latitude Series Latitude E6510Dell Latitude Series Latitude E8400
Original Part Number
312-0748 HJ590 NM631 RG049 KY268 FU272 FU274 PP27L KY477 PT650 ND8CG KY266 KY466 312-7414 312-0753 PT436 FU439 KY470 TX283 FU441 451-10583 PT434 MP490 RK544 MP307 C719R PT653 MP492 H1391 312-0917 GU715 MN631 J905R 4M529 MP303 H3K58 4N369 312-0749 PT644 PT435 312-0754 DFNCH FU444 W1193 KY265 KY285 U844G FU268 9H626 MP494 312-7415 1M215 NM633 PP30L 312-0910 MN632 R822G FU571 PT437 W0X4F NM632 KY471
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.