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Dell OEM 1691P, 5081P, 312-0009, 312-3250  Lithium Ion Laptop Battery 8-cell and 4400 mAh



Dell 1691P, 5081P battery


Regular Price $184.95

Buy it Now and Save 55%

Compatible with:

312-0009, 312-3250

3149C, 5081p

5208u, 53977

75UYF, 1K500

2M400, 312-0026

312-0028, 312-0041

312-0051, 312-0115

312-0522, 312-3280

3H352, 3H625

3K120, 77TCJ

800BTPR, 851UY

8M815, B-5630


Buy 3 Years Extended Warranty and save $40 Instantly.

Regular $79.95

Your Price $39.95


  • Compatible with Inspiron 4000 / 8000 Series and the Latitude C Series of Dell laptops. 
  • Battery Technology: I-ion, 14.8V 4400 mAh 8 Cell.
  • 100% OEM Compatible
  • Order this Today - 1 year Warranty, 30 Day Money Back No Risk Shopping, Secure Online Ordering Guaranteed!


Buying Guides for Laptop Accessories

Battery Tips Notebook batteries are extremely important to your overall enjoyment of your notebook or laptop. We usually buy a notebook computer for its portability. We want to take and use it anywhere and everywhere. In order for us to fully enjoy our notebooks we must choose the right battery or batteries. Battery life - how long the battery lasts - will determine the extent of our enjoyment. So always check the battery life of the notebook or laptop you're considering buying. Technology is increasing at an amazing rate, making it possible to run your notebook or laptop with less power - thus extending the battery life of your notebook. Notebook batteries can now last up to 5/6 hours or more. However, as everyone knows, stated battery life has to be taken with a grain of salt. Battery life will largely depend on what you're running on your laptop - some tasks like 3D video games or watching movies will take up more power and limit the operating time. You can usually count on 2 to 3 hours for most laptops. Lithium ion Battery This is the type of battery found in most notebook computers because they have a longer battery life than regular batteries or their predecessors - Ni-Cad (Nickel-Cadmium) and NiMH (Nickel-Metal-Hydride). In the future, newer types may include Lithium Metal batteries which will offer a longer shelf life when charged.  Notebook batteries can be 4-cell, 6-cell, 9-cell, etc. if long battery life is important to you - get the highest numbered cell battery. Also, it might be wise to purchase a second battery if you do a lot of traveling or 'in-the-field' work. And if battery life is extremely important to you - purchase 2 or 3 extra batteries to make sure you have the power to get the job done. Rechargeable Batteries - Some Things You Should Know The most frequently asked question about Rechargeable Batteries - How long will a rechargeable battery last? How many charge-discharge cycles will it be good for?

Usually under normal routine operating conditions the battery should last for 400 to 700 cycles. This may be equivalent to a one to two years of notebook use. You will know when to get a new battery when the running time of an old battery has noticeably declined. Quick Tips for Conserving Your Laptop Battery o Adjust Your Power Settings Optimizing your notebook by customizing your power schemes can prolong battery life. Display and hard disk use the most power - so customize your notebook accordingly. o Use Standby or Hibernation Mode When Not In Use Save power by putting your laptop into Standby or Hibernation when not in use. o Adjust The Screen Brightness Dimmer is better. It will also save battery power. o Turn Off Wireless Your wireless card will take a lot of power - turn it off when not in use. o Go Easy on Power-intensive Activities Limit DVD watching or online games with you're using battery power. o Charge Your Battery As Often As Possible Remember to charge your battery frequently especially if you take a lot of trips. o Buy A Spare It's better to have that extra battery power on hand for when you need it. Should or Can An Old Laptop or Notebook Battery be Refilled? No. Actually, that has to be qualified, if your Li-Ion is completely dead - it can't be refilled. Ni-Mh and Ni-Cd batteries can be refilled but be wary of any company that claims to refill old laptop batteries. Make sure their service is top-notch and professional. In the case of Lithium ion batteries refilling may prove dangerous; inside each cell in the battery pack there's a protection circuit against overcharging. Any new refilled cells must be matched with this circuit, if they're not - an explosion may happen if there's a malfunction in the notebook or fuel gauge circuit. However, there are companies that can perform this specialized work. Just proceed with caution, especially in regards to Li-Ion batteries. Is Your Notebook Battery Charging Properly? If you're using an older notebook or laptop model, make sure that your battery is charging properly. Many times if you're having problems with your notebook crashing and shutting down randomly, even when you have it plugged in, this may be due to faulty battery charging. Replacement Batteries Replacing notebook or laptop batteries should be done when there is a noticeable decrease in running time even if the battery has been fully charged. If you're a frequent flyer or do a lot of work with your notebook in the field - purchasing an extra battery or two should be considered needed accessories for your notebook. Some Handy Notebook Battery Links: usbphoneworld - Great source of laptop or notebook batteries. Ordering batteries over the Internet is the only choice for people living outside large urban areas - notebook batteries (the one that fits your particular model) may be hard to find. usbphoneworld and other Internet Battery Sellers - keep a well stocked catalogue or supply of batteries - same day shipping also makes it a practical way of buying those extra notebook batteries. Notebook Battery Selector Unsure of what type of the battery goes in your notebook or laptop? Check with this site and they will tell you!


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