Batteries in portable consumer devices ( laptop batteries, notebook batteries, camcorder batteries, cell phone batteries, digital camera batteries etc.) are principally made using either Nickel Cadmium (NiCad), Nickel Metal Hydride (NiMH), Lithium Ion (Li-Ion) or Lithium Polymer (Li-Polymer) technologies. Each type of rechargeable battery technology has its own unique characteristics:

The main difference between these chemistries is that NiMH batteries (the newer of the two technologies) offer higher energy densities than NiCad batteries. In other words, pound for pound, NiMH delivers approximately 100% more capacity than its NiCad counterpart. What this translates into is increased run-time from the battery with no additional bulk to weigh down your portable device. NiMH batteries also offer another major advantage- NiMH batteries are less prone to develop the memory effect and thus require less maintenance and care. NiMH batteries are also more environmentally friendly than their NiCad counterparts, since they do not contain heavy metals

Li-Ion has quickly become the emerging standard for portable power in consumer devices. Li-Ion batteries produce the same energy as NiMH batteries but weigh approximately 35% less. This is crucial in applications such as camcorders or notebook computers, where the battery makes up a significant portion of the device's weight. Another reason Li-Ion batteries have become so popular is that they do not suffer from the memory effect at all. They are also better for the environment because they do not contain toxic materials such as Cadmium or Mercury.

This is a newer type of Li-Ion battery. It uses a solid polymer electrolyte that looks like a plastic film. It contains a gelled electrolyte which is less susceptible to leaking and uses a bag type enclosure rather than a rigid metal case. This leads to a lighter and thinner battery and it is considered safer because the gelled electrolyte is less likely to leak. It is also more resistant to overcharge.

There are several steps you can take to insure that you get maximum performance from the battery:

New batteries come in a discharged condition and must be fully charged before use. It is recommended that you fully charge and discharge the new battery two to four times to allow it to reach its maximum rated capacity.

Keep the battery healthy by fully charging and then fully discharging it at least once every two to three weeks. Exceptions to the rule are Li-Ion batteries which do not suffer from the memory effect.

It's a good idea to clean dirty battery contacts with a cotton swab and alcohol. This helps maintain a good connection between the battery and the portable device.

Do not leave the battery dormant for long periods of time. We recommend using the battery at least once every two to three weeks. If a battery has not been used for a long period of time, perform the new battery break in procedure described above.

If you don't plan on using the battery for a month or more, we recommend charge the battery at 60%-80% storing it in a clean, dry, cool place away from heat and metal objects. NiCad, NiMH and Li-Ion batteries will self-discharge during storage; remember to break them in before use.

To get maximum performance from your laptop battery, fully optimize the notebooks power management features prior to use. Power management is a trade off: better power conservation in exchange for lesser computer performance. The power management system conserves battery power by setting the processor to run at a slower speed, dimming the screen, spinning down the hard drive when it's not in use and causing the machine to go into sleep mode when inactive. The notebook users guide will provide information relating to specific power management features.

New batteries are shipped in a discharged condition and must be charged before use. We generally recommend an overnight charge (approximately twelve hours). Rechargeable batteries should be cycled - fully charged and then fully discharged - two to four times initially to allow them to reach their full capacity. (Note: it is normal for a battery to become warm to the touch during charging and discharging). New batteries are hard for the device to charge; they have never been fully charged and are therefore "unformed". Sometimes the device's charger will stop charging a new battery before it is fully charged. If this happens, remove the battery from the device and then reinsert it. The charge cycle should begin again. This may happen several times during the first battery charge. Don't worry; it's perfectly normal.

Because of the humidity and non-insulated environment, all the batteries will be discharged naturally. It depends on the quality and newness grade. It is normal to reduce 1 % power in 3-4 days.

You should look into the temperature of working Environment, It will automatically shut down to protect the battery while working in a high-temperature room. You can take out the battery and keep it in a cold dry place for a while then. Re-try to turn on the laptop. Also another possibility exist: Maybe something wrong during the laptop ¨Ccharging. Then, please check that is it working with original battery?

The life of a rechargeable battery operating under normal conditions is generally between 500 to 800 charge-discharge cycles. This translates into one and a half to three years of battery life for the average user. As the rechargeable battery begins to die, the user will notice a decline in the running time of the battery. When a battery that originally operated the notebook for two hours is only supplying the user with an hour's worth of use, it's time for a new one.