Basic laptop battery knowledge

With the popularity of laptops, we pay more attention on Laptop battery I would like to share some of my knowledge on laptop battery with you .

1. How to manage if we want to store the battery?

You should be charge a maximum of 90% of the electric and put it in the plastic wrap on a cool place.

2. Do lithium batteries have memory effect?

Li-ion battery memory effect is very small, almost 0.

3. How do we know the times we have charged?

For example, inside IBM’s Power AC CESS IBM there is an option which can check the use times of battery, you can clearly know the first charge time and the laptop and battery  health. Other notebooks must have the similar functions.

4. Whether we can directly use the AC power without a battery?

No. The reason is the Lithium-ion inside battery in a relatively quiet for a long time (relatively static means the battery without electricity or small amount of energy. A long time usually refers to 6 months), will completely lose their stored energy function.

5. The first charge should be sufficient for 12 hours?

This is applicable for Ni-MH battery model that does not have the battery control circuit, but until now, to a chip and charge control circuit discharge laptop batteries, that was a joke. When the battery is fully charged, the charging current is automatically cut off, even if you continue to charge 120 hours, the state would not be change. In general, even the slowest charging machine, six hours is completely filled, and the leave “charge” is just a waste of your time. Instead, you should first charge the battery for laptop after the power exhausted when you get a new machine.

6. How long is the battery lifespan?

There is no concept of time constraints, the lithium battery average life is a charge of about 400-500 times, there is definitely a quality problem battery if it’s lower than the figure.