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- HP Community
- Notebooks
- Notebook Hardware and Upgrade Questions
- Notebook Battery MU-09 replacement 636631-001

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07-30-2024 01:03 PM
Need a replacement battery for an HP Pavilion dv7-6b78us Entertainment PC. MU-09 notebook battery. Regulatory model numberHSTNN-IB2W. 11.1V - - 100Wh. 8550mAh.
07-30-2024 02:10 PM - edited 07-30-2024 02:13 PM
HP will not carry it. eBay or Amazon is your best bet. They will have OEM HP batteries but on laptops of that age I actually prefer "compatible" aftermarket batteries as the OEM ones can be new old stock and have sit on the shelf for some time.
Any of these part numbers would work:
9-cell, 100-WHr, 3.00-AHr, LI 636631-001
6-cell, 62-WHr, 2.80-AHr, LI 593562-001
6-cell, 55-WHr, 2.55-AHr, LI 593554-001
You specified the 9-cell which you understand is swelled out and will lift the back end of the laptop. That is not necessarily a bad thing, BTW as it aids air circulation and cooling and obviously a 9-cell has more runtime than a 6 cell.
I had some trouble locating a 9-cell. This is a 6-cell but highly rated by buyers:
This is a 9 cell but the price and seller rating give me just a little pause:
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