Welcome to the HP Support Community. I'd be happy to assist you with the replacement battery.
You need a 4-cell, 41-Whr, 2.8-Ah Li-ion battery. Spare Part# 807957-001.
You may order the replacement parts on the HP Parts Store, use the HP Parts Surfer to find the part number and If you've already looked for it and couldn't find it on the HP Parts Store, you may want to get it locally at the online store such as Amazon or eBay, etc...as the part numbers are universal.
Alternatively, I suggest you talk to HP support and discuss your options, follow the below steps to get started:
2) Click on Sign-in or select the product using the below step:
3) Enter the serial of your device.
4) Select the country from the drop-down.
5) Click on "Show Options". Fill the web-form, to populate a case number and phone number for yourself!
Also, if you are having trouble navigating through the above options, it's most likely because the device is out of warranty, if yes? please send me a private message with the region you are contacting us from, here's how private messages work:Click here for details.
Hope this helps! Keep me posted.
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