HP MU09 Long Life Notebook Battery

HP MU09 Long Life Notebook Battery


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UPC: 884962734155   Part: WD549AA#ABB


HP is dedicated to providing you with innovative power solutions to increase your notebook's entertainment and productivity value while reducing your total cost of ownership. The HP Long Life Battery has up to a three year life span – backed by the industry’s first three-year limited warranty. HP is committed to the environment and reducing battery waste. Fewer batteries are used over the life of the notebook with HP Long Life Batteries making this a smart choice for you and the environment.


  • Lower Total Cost of Ownership: One battery has an up to three year cycle lifespan, reducing your overall battery cost since you purchase fewer batteries over the life of the notebook.
  • Flexible Solutions: With up to three years of warranted performance, you can enjoy the entertainment and productivity features of your notebook for longer then with standard solutions.
  • Environment: HP is committed to protecting the environment and we design our products with that in mind. New technology reduces overall battery waste by requiring fewer batteries to be used over the life of the notebook. HP gives you the option to benefit not only yourself but the environment as well.
  • Intelligent Construction: An insulating safety wrap is used to enclose the cells.; A fire-retardant casing, which conforms to rigorous safety standards, encloses the entire battery.; Barrier walls isolate cells from the Printed Circuit Assembly (PCA), presenting a liquid and thermal barrier.; The PCA has a conformal coating to protect circuitry from potential shorts.; Internal connections are designed to prevent pinching and potential short circuits.
  • Genuine HP Batteries: Tested with all compatible HP notebook PCs so HP can deliver the highest quality products, services, and solutions to your home
  • HP Pavilion: dm4-1000, dm4-2000, dm4-3000, dv7-4000, dv7-6000, dv6-3000, dv6-6000, dv5-2000, dv4-4000, dv3-4000; HP: G42, G62, G72; ENVY: 17-100, 17-200; Compaq Presario: CQ32, CQ42, CQ43, CQ62, CQ72


  • 1.05 lb
  • 8.07 x 2.09 x 3.81 in

What's in the box

  • Battery; documentation
  • Three-year, worldwide parts-and-labor limited warranty; 24x7 HP technical phone support during warranty period

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Customer ratings and reviews for HP MU09 Long Life Notebook Battery

Rated 1 out of 5 by A total waste I bought this hoping to be able to make better use of my laptop. It is a total waste. It last about an hour and twenty minutes before I have to re-charge. This is just for viewing photos or surfing the web not for watching movies. My work laptop battery lasts much longer bu that is not an HP computer. December 18, 2011
Rated 5 out of 5 by Wise move. Compared to the 6 cell that came with the computer and would last only one hour this one has far exceeded that at 3 hours and still had over 25% left. Very happy December 11, 2011
Rated 5 out of 5 by Excellent Battery This battery exceeded my expectations. Greatly increaased work time without the power supply connected. No need to carry my power supply with me. Very satisfied with the battery. November 20, 2011
Rated 5 out of 5 by Well Worth the Extra Cash This battery lasts significantly longer then the stock battery. On top of that it arches up your laptop which is a good feel and look. Last but not least it allows air to circulate under your laptop. November 11, 2011
Rated 1 out of 5 by Waste of money This battery is supposed to last 9.5 hrs but really only lasts 3-3.5 hrs at best and thats without heavy use such as gaming. I returned this item in 2 days. November 8, 2011
Rated 1 out of 5 by A waste of money! My lighter six cell battery lasted as long as this new heavier 9 cell battery. October 15, 2011

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Owner support

Warranty information

This product is covered by the standard HP warranty

Support information

Support for this product is provided by HP Customer Care

Returns & exchange information

The HP Home & Home Office Store will accept returns or exchanges for this product up to 21 days after delivery

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