Please note on some laptop models, the number printed near the keyboard or around the screen is usually the series. You will want to find the complete series and model before ordering the battery. An example is HP Pavilion dv series. A dv7 series laptop has three different batteries depending on your model (OEM part numbers compatible to dv7 GA08, MU06, MO06). You will find the correct replacement needed by locating your series “dv7” plus the model, example dv7-1000.

Start with your owner's manual; the manual should have the brand and model number on the front cover. If you don't have your owner's manual, check your laptop. Almost every laptop has a manufacturer's label usually on the bottom of the computer. This label will have a barcode or serial number along with the brand and model number. You may also remove the battery, and printed on the battery will be a replacement part number.

If this sticker has worn off, remove your laptop battery. In the battery compartment, some laptop models will have the model number engraved or printed inside. You can also turn on your laptop, and find the series and model under “System Information;” click on the Start menu > Programs > Accessories > System Tools and click on System Information.

Most laptop batteries from major manufacturers use standardized part numbers and/or model numbers. Here are examples of different part numbers from the major brands: