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 4 out of 5 by Works for me I never had an older version of this battery, but the one I have came with my notebook. It lasts more than four hours while using MS Office products including Frontline Solver Platform. When it is below 50% and I want to charge for school, I have to turn on every application including a McAfee scan and reset the power options to never go to sleep. Then after about an hour, I can re-charge. March 27, 2011
Rated 5 out of 5 by Worth buying The original battery on the DM4 only lasts around 2 to 2.5 hours while this battery will last about 5.5 to 6 hours on power saver mode at medium brightness and internet with some video. I got the battery on sale during the holidays at a lower price. To me it was a worthwhile purchase and BTW I bought two which will be great while traveling. January 16, 2011
Rated 2 out of 5 by 9 Cell only marginal improvement For the added cost, this 9 cell does not provide that much additional life. HP is offering a 12 Cell on other Pavillions, such as the DV5's, DV6-1000's and DV6-2000's but apparently will not make it available for the DV-3000 series units. HP must not want our accessory business.... We really need a 12 cell for extended run time. Also, most online laptop battery sources offer free 2-3 day Priority mail delivery. Sorry HP, I'll go elsewhere for future purchses if you can't be competitive on accessories.... January 8, 2011
Rated 3 out of 5 by Long life battery it isn't!!! I'm very disappointed! This so-called long life battery isn't so long life! May as well have kept original battery and not wasted time and money. Also, it took 20 days to receive this battery. There was free shipping but come on, 20 days?!?! Wasn't worth the wait!! December 26, 2010

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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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