HP :

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COMPAQ :

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Need a longer lasting HP F4809A F4812A laptop battery?

Actually, many factors affect the amount of time that a laptop battery can deliver power before it must be recharged. How to extend F4809A HP laptop battery life? Here are some more tips to improve your HP F4809A laptop battery notebook's battery life:

1. If you do not use your laptop for extended periods of time (a week or more), remove the HP f4809a battery pack from the laptop.

2. Do not expose the battery to high heat or freezing temperatures. Do not leave your battery in your car in the summer. Hot batteries discharge very quickly, and cold ones can't create as much power.

3. Make sure to plug your laptop charger adapter into a UPS and not directly into a power outlet or surge protector.

4. If you have a nickel-metal hydride battery, completely drain and recharge the battery once a month to maximize its capacity to hold a charge.

5. Fully charge new battery packs before use. New pack needs to be fully charged and discharged (cycled) a few times before it can condition to full capacity.

6. For laptops that work as Desktop Replacement, the battery should be re-installed every 3-4 weeks and allowed to fully discharge.

7. Leaving a battery in a laptop while using an electrical outlet for long periods of time will keep the battery in a constant state of charging up and that will reduce the life cycle of the battery.

What Are Amps, Volts, Run Time and Battery Chemistry?

Every laptop battery has two ratings which are volts and amp. The Ah rating may also be given as milliamp-hours (mAh), which are one-thousandth of an amp. ( for example, a 1Ah battery is equal to 1000mAh). Ah hours are a rating of the amount of energy that a battery can store. Typically, themAh rating is also a measure of the number of hours a battery may last power. For example, a 1000mAh battery will last at least 1 hours. The higher a battery's amp hour rating is, the longer the battery's run-time will be. It is not uncommon for some of our batteries to have higher or lower amp ratings. This will not cause any incompatibilities. So, you can get the HP F4809A F4812A battery 4400mAh freely.

Voltage ratings, however, must be within a reasonable range. For instance, your original battery may say 3.6v, but you purchase a battery that is 3.7v. This is still acceptable. The rule of thumb when dealing with voltage is to never exceed one volt higher than your original rating. So if your original battery is rated at 3.6v, then you would be able to use a replacement battery up to 4.6v and nothing higher. So, you need to compare before you place the replacement HP F4809a battery order usually.

Run times vary for many reasons, such as the type of device, the type of applications being used, whether or not you are playing a cd or dvd and the chemistry of the battery. The average computer should give you between 1½ to 3 hours of run time. Once again, this varies for many reasons.
Usually, the HP F4809A battery will run over 3 hours after fully charged, and it holds a 300-500 charge circle.

There are two main cell types of batteries that we carry. They are Li-ion and Ni-MH. "Li-ion" stands for Lithium Ion and "Ni-MH" stands for Nickel Metal Hydride. Li-ion batteries are 50% lighter compared to Ni-MH batteries and will run your device about 50% longer, thus they are more expensive.

Other cell types for batteries do exist. One older type is Ni-Cd which stands for Nickel Cadmium. These cells have been replaced by Ni-MH technology making them very much alike and compatible. Another newer type of cell is Li-pol which stands for Lithium Polymer. This is the most recent cell type which is currently being used to replace Lithium Ion cells. Although Li-pol cells are lighter and last longer than Li-ion ones, they are still both compatible cell types.

Shopping Service tips

Goods sold HP laptop battery and HP power supply charger ac dc adapter for F4809A are designed to compatible many battery parts, and which works with each laptop notebook computer machine model.

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Order cheap, 1 year warranty! Not only in wholesale but also retail price in global for F4809A HP battery and adapter. Availability: Order In Stock (UK, Europe and Ireland Netherlands Portugal France Italy HK DE ... and other , USA , CANADA)

Shipping ASAP to your home, your place of business, your travelling aim place, or another residence address and all of the packages can be tracked. Usually shipping the same business day before PM 2:00.

Returns:
Defective HP F4809A battery products may be replaced if returned within 1 year from the date of purchase. If products do not work properly, please contact our customer service department first to resolve your problem. Do not return them directly to us without getting a RMA number. It may make us difficult to find your transaction record so as to delay exchange or refund process.

Defective HP F4809A battery series products must be returned within 30 days from the RMA issuing date.

More problems:

New HP F4809A F4812A Battery Use Manual:

How to charge for new hp f4809a f4812a battery firstly? How to use hp f4809a f4812a battery properly? Some common battery life knowledge tips to share here. Wish you a happy shopping travelling.