Home » HP 451085-121 Compatible Laptop Battery 10.8V (4400mAh / 48Wh) Li-ion
HP 451085-121 Compatible Laptop Battery 10.8V (4400mAh / 48Wh) Li-ion
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HP 451085-121 Compatible Laptop Battery 10.8V (4400mAh / 48Wh) Li-ion
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HP 451085-121 Compatible Laptop Battery 10.8V (4400mAh / 48Wh) Li-ion

SKU: LHP220-BP-K001
C$42.00
Only 5 left

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  • Compatible Brands HP
  • Model/OPN 451085-121
  • 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 HP 451085-121 is available for C$42.00 . 10.8V · 4400mAh / 48Wh · Conventional Li-ion.

Important Notes
  • This battery only compatible with 10.8V and 11.1V version.
Compatible Model
HP Notebook PC Series 6720 Notebook PCHP Notebook PC Series 6720s Notebook PCHP Notebook PC Series 6730s Notebook PCHP Notebook PC Series 6735 Notebook PCHP Notebook PC Series 6735s Notebook PCHP Notebook PC Series 6820 Notebook PCHP Notebook PC Series 6820s Notebook PCHP Notebook PC Series 6830s Notebook PC
Original Part Number
451568-001 HSTNN-I64C-5 491654-001 491657-001 490306-001 KU532AA 464119-142 464119-363 456865-001 496897-001 451086-001 464119-162 456623-001 451086-121 491278-001 451085-141 HSTNN-OB52 HSTNN-FB51 464119-143 572186-001 HSTNN-OB51T GJ655AA#ABH HSTNN-I65C-5 GJ655AA 451085-361 HSTNN-FB52 500764-001 451086-621 572188-001 572191-001 451545-361 DD08 HSTNN-I39C HSTNN-I48C-A 491279-001 HSTNN-I40C 484787-001 451085-142 464119-361 HSTNN-IB52 HSTNN-IB62 451085-621 HSTNN-XB52 451086-161 572190-001 HSTNN-OB62 DD08063 464119-362 HSTNN-I54C 451086-361 HSTNN-I48C-B 451086-362 451086-661 HSTNN-OB51 572187-001 HSTNN-XB62 HSTNN-IB55 451085-661 451086-162 572189-001 501870-001 HSTNN-XB51 500765-001 451085-121 NBP8A97 HSTNN-I49C HSTNN-IB51 HSTNN-I50C-B
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.