HP MU09 Long Life Notebook Battery | HP® Official Store

Enter your email address below and we will notify you when this product becomes available

To top

HP MU09 Long Life Notebook Battery

Free shipping & free returns | Save 25% instantly, ends 2/20

Product #WD549AA#ABB
Back Features

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.

Return & exchange information

HP.com will accept returns or exchanges for this product up to 30 days after delivery.

Back Specs

Product specifications


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

Dimensions (W X D X H)

8.07 x 2.09 x 3.81 in


1.05 lb


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

What's in the box

Battery; documentation

Return & exchange information

HP.com will accept returns or exchanges for this product up to 30 days after delivery.

Back Special offers
  • Free shipping & free returns
  • Save 25% instantly, ends 2/20

Product reviews

Showing out of reviews.
Write a review Read all reviews
Rated 4 out of 5 by Good lifespan, despite non-optimal usage This battery came with my HP Pavilion m7-1015dx laptop, which is an equivalent to the dv7 if I'm correct. After using this battery for 4 years, only now has it began dying. While it may seem discouraging, it's much better compared to what most people report on the MU06 reviews, where their batteries seem to die after about a year, with the cost difference being only $20 USD (though, still very expensive as the cost for this battery is $140 USD). There's also to note that I've been using my laptop much like a desktop, thus I left the battery in full charge with the AC power plugged in along with it, which is considered improper usage of battery, but of course I always worried about power outages. Proper care for laptop batteries should mean the battery should not be left topped off with the power plugged in, and rather discharged to 10% before plugging it back in. July 18, 2015
Rated 2 out of 5 by Doesn't live up to its name The battery is supposed to be Long Life as the name suggests. That is why I spent the extra cash to get the convenience of a longer charge. I am barely getting 3 hours. Maybe old inventory. Who knows, but very disappointing by my standards. I do like the higher angle of the battery because it does allow my 17" laptop to breathe and keep it running cool! I am hoping HP will replace it as I am an HP fan. Wish I could have rated it higher. September 9, 2014
Rated 5 out of 5 by Raised battery excellent idea Really like the raised design of this battery as air circulates better under computer and does not get as hot as it use to with the older battery. New battery holds charge much better than original battery and no longer running out of power between charges. VERY pleased with purchase, worth the cost. September 8, 2014
Rated 5 out of 5 by battery life I like this product because it gave my laptop a slight tilt therefore my computer no longer gets extremely hot from lying flat on surface. June 7, 2014
Rated 5 out of 5 by Exceeds expectations The battery holds power for 5 hours at a time. The design tilts my computer up and helps keep it cooler. May 30, 2014
Rated 5 out of 5 by This battery has a good life cycle. I have had this battery for about 4 years and it has done a great job but now it's coming to the end of it's life and won't charge over 95% so I replaced it with a new one. I am very happy with the long life and good service this extended battery gives. I used the first one everyday for 4 years without fail and I think that speaks for itself. May 21, 2014
  • 2016-02-13 T05:31:34.288-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_95, tr_95
  • loc_en_US, sid_WD549AA_BVEP_ABB, prod, sort_default
2 3 4 5 ... 16 to next page>>
  • bvseo_sdk, java_sdk, bvseo-3.1.0
  • CLOUD, getReviews, 28ms
Back Reviews

Prices, specifications, availability and terms of offers may change without notice. Price protection, price matching or price guarantees do not apply to Intra-day, Daily Deals or limited-time promotions. Quantity limits may apply to orders, including orders for discounted and promotional items. Despite our best efforts, a small number of items may contain pricing, typography, or photography errors. Correct prices and promotions are validated at the time your order is placed. These terms apply only to products sold by HP.com; reseller offers may vary. Items sold by the HP.com are not for immediate resale. Orders that do not comply with HP.com terms, conditions, and limitations may be cancelled.

HP’s MSRP is subject to discount. HP’s MSRP price is shown as either a stand-alone price or as a strike-through price with a discounted or promotional price also listed. Discounted or promotional pricing is indicated by the presence of an additional higher MSRP strike-through price.

In-home warranty is available only on select customizable HP desktop PCs. Need for in-home service is determined by HP support representative. Customer may be required to run system self-test programs or correct reported faults by following advice given over phone. On-site services provided only if issue can't be corrected remotely. Service not available holidays and weekends.

HP will transfer your name and address information, IP address, products ordered and associated costs and other personal information related to processing your application to Bill Me Later®. Bill Me Later will use that data under its privacy policy.

Ultrabook, Celeron, Celeron Inside, Core Inside, Intel, Intel Logo, Intel Atom, Intel Atom Inside, Intel Core, Intel Inside, Intel Inside Logo, Intel vPro, Itanium, Itanium Inside, Pentium, Pentium Inside, vPro Inside, Xeon, and Xeon Inside are trademarks of Intel Corporation in the U.S. and/or other countries.

Microsoft Windows 10: Not all features are available in all editions or versions of Windows 10. Systems may require upgraded and/or separately purchased hardware, drivers, software or BIOS update to take full advantage of Windows 10 functionality. Windows 10 is automatically updated, which is always enabled. ISP fees may apply and additional requirements may apply over time for updates. See http://www.microsoft.com.