Computer Batteries : New Lithium-ion Battery
by SammyThis computer batteries have compatible models/replace PN : HP/Compaq f4809a f4812a.
With capacity 4400mAh - voltage : 14.8v. Battery Type : Lithium-Ion. 100% OEM compatible!
Lithium-Ion batteries : What You Need to Know About Li-Ion TechnologySummary articles by Mallory Kramer
The difference is in the chemistry, a lithium battery is a disposable power source composed of lithium metal compounds - the key word, here, being disposable. Lithium batteries can not recharged. Lithium Ion batteries on the other hand are intercalated, meaning the lithium ion in side the battery moves between two internal electrodes. This movement or reversibility of the lithium ion accounts for the battery's rechargeability.
What are the benefits of lithium ion technology?
Lithium-ion batteries hold a lot of power and are surprisingly light-weight, especially with consideration to other rechargeable batteries. Li-ion batteries combine single cell technology with a greater energy reservoir than Nickel Metal Hydride and Nickel Cadmium batteries. They store more power for their size than both NiCad and NiMH. Li-ion batteries hold their charge for significantly longer than other comparable batteries and provide steady power until that charge is completely gone. Other batteries gradually and consistently loose power as you work. Li-ion batteries stay strong until the last push.
The disadvantages with using Li-ion battery technology are generally few and far between and technological advancements are making them even less so. Manufacturers have recently improved the lithium-ion recipe to reveal a more reliable battery. Still, every giant has its weaknesses. Li-ion batteries are sensitive to intense hot and cold temperatures. In etreme temperature conditions, the battery will degrade more quickly. Li-ion batteries degrade regardless frequency of use. The Li-ion battery's built-in computer chip tells the battery to refuse a charge once the batteries power falls below a certain point. If this occurs, the battery is beyond repair. Although these defects are more applicable to the older Lithiumion batteries, the possibility of seeing these problems is still worth noting. Fortunately, these said defects are fairly rare and easily avoided. Store Li-ion batteries (and other batteries as well) in a cool, dry place. Use your Li-ion batteries often. Be certain Li-ion batteries have a full charge before storing them and pull them out every so often to use and recharge. Watch the batteries power level to be sure it doesn't fall below the charge limit.
