What quick settings can extend laptop battery life?

Enable Battery Saver/Power Saver, reduce screen brightness, close unused apps/tabs, turn off Wi-Fi/Bluetooth when not needed, and avoid heat buildup by keeping vents clear.

HP 593573-001 ProBook 4525s 4320 4321s 4320s 4325s 4420s Compaq 320 321 326 420 425 621 620 625 593572-001 HSTNN-W79C-5 HSTNN-DB1A PH06 PH09 [10.8V / 48Wh] Laptop Battery Replacement

PH06 587706-121 Battery for HP ProBook 4525s 4320s 4321s 4325s 4320t 4420s 4421s 4425s Compaq 620 625 621 320 321 325 326 420 421 425 525 Notebook PC Series 593572-001 HSTNN-IB1A HSTNN-CB1B 587706-421 [10.8V] Compatible Battery

Q: Where can I find the battery part number?

Shut down the laptop, unplug power, remove the battery (if removable), and read the label printed on the battery itself. That part number is the best way to confirm compatibility.

Q: Are different battery voltages interchangeable?

No. You must match the voltage on your original battery. Note: 10.8V equals 11.1V, and 14.4V equals 14.8V.

Q: Can I use my laptop model number instead of the battery part number?

You can use a laptop model number to narrow it down, but the battery part number is more precise. One laptop model can support multiple battery types, so the printed battery part number is best.

$39.00 USD

~~$63.70 USD~~ Sale $39.00 USD

Minimum Qty	Discount
Buy 5 +	Price with 10% off: $35.10
Buy 10 +	Price with 20% off: $31.20

Discount will be applied at Checkout page

Product variants

Remark: Please make sure your battery is exactly the same as the picture shown.

Not compatible with Probook 4520s 17.3" and Probook 4720s 17.3"

Product Info

Type Laptop Battery
SKU LHP237-db-001
Compatible Brand HP
Capacity 4400mAh / 48Wh
Cell Type Conventional Li-ion
Shipping Free Shipping

COMPATIBLE LAPTOP MODELS

HP Compaq 320 Notebook PC Series

HP Compaq 321 Notebook PC Series

HP Compaq 325 Notebook PC Series

HP Compaq 326 Notebook PC Series

HP Compaq 420 Notebook PC Series

HP Compaq 421 Notebook PC Series

HP Compaq 425 Notebook PC Series

HP Compaq 525 Notebook PC Series

HP Compaq 620 Notebook PC Series

HP Compaq 621 Notebook PC Series

HP Compaq 625 Notebook PC Series

HP ProBook 4320s Series

HP ProBook 4320t Series

HP ProBook 4321s Series

HP ProBook 4325s Series

HP ProBook 4420s Series

HP ProBook 4421s Series

HP ProBook 4425s Series

HP ProBook 4525s Series

COMPATIBLE ORIGINAL PART NUMBERS

REMARKS

Please make sure your battery is exactly the same as the picture shown
Not compatible with Probook 4520s 17.3" and Probook 4720s 17.3"
Please confirm your laptop model and battery number before placing an order

Compatible Brand: HP

🔋 See More HP Compatible Laptop Batteries ⚡ See More HP Compatible Laptop Adapters

Laptop Battery FAQs How To Find The Correct Battery?

How do I know if a laptop battery will fit my device?

The most reliable method is matching the part number printed on your original battery. Also confirm the voltage and compare the battery shape and connector position with the product photos and specifications.

Where can I find the battery part number?

Shut down the laptop, unplug the power adapter, remove the battery if it is removable, and read the label printed directly on the battery. This part number is the best way to confirm compatibility.

Are different battery voltages interchangeable?

No. You must match the voltage shown on your original battery. Note that 10.8V equals 11.1V, and 14.4V equals 14.8V, but other voltage differences are not compatible.

What should I compare before ordering a replacement battery online?

Compare the original battery’s part number and voltage first, then check the size and shape, connector type and location, latch position, and orientation against the product photos and specifications.

Can I use my laptop model number instead of the battery part number?

You can use the laptop model number to narrow down options, but the battery part number is more precise. A single laptop model can support multiple battery types, so matching the printed battery part number is best.

What quick settings can help extend laptop battery life?

Enable Battery Saver or Power Saver mode, reduce screen brightness, close unused apps and browser tabs, turn off Wi-Fi or Bluetooth when not needed, and avoid heat by keeping the laptop vents clear.

Choosing the correct replacement battery or adapter is critical for safety, performance, and compatibility. DrBattery.com carries over 120,000 compatible models and part numbers for major laptop brands. Follow these steps before placing your order:

1. Check Your Device Information

Look at your device’s owner’s manual or label on the bottom of your laptop. Both should show the brand and exact model number.
If you are buying an adapter, confirm the model number, input voltage, and current listed on your device label.

2. Verify the Original Battery Part Number

Always shut down your laptop before removing the original battery. On the battery label, you will find a part number. This part number is the most reliable way to ensure compatibility.

3. Recognize Common Part Number Formats

Major manufacturers use standard codes. Here are some examples:

HP / Compaq:
123456-001

Sony:
PCGA-BP12, VGP-BP1

Dell:
312-1234, 1234P

IBM / Lenovo:
02K1234, 08K1234

Toshiba:
PA1234U-1BRS

4. Compare the Physical Details

Check the size, connector type, latch position, and orientation of your original battery. Compare these details with the product photos on our website before ordering.

5. Watch Out for Voltage Differences

Some models have two different voltage options — for example, 11.1V vs. 14.8V. They are NOT interchangeable. Always confirm the voltage printed on your original battery.