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Friday, July 23, 2010

In the chapter of laptop battery maintenance, we have figured out that it is unnecessary for lithium-ion batteries to be activated so frequently. While some users still activate as they used to do on Ni-mh and Ni-cd ones. Here, let’s have a talk about if it is unnecessary or harmful for laptop battery to be activated so frequently.

After updating from Ni-mh to lithium-ion battery, Toshiba laptop battery comes to have higher capacity, longer standby time and better material choices. With higher energy density, more lithium-ions can be store in organic solutions while the better materials of electrode can make it safer. With less memory effect, each time of charging is a new beginning for battery to gain power energy for laptop charger.

toshiba laptop battery, pa3399u 2brs

PA3399u 2brs
is a typical standard Toshiba laptop battery with all the characteristics of lithium-ion batteries. As a matter of fact, it is the memory effect that makes the battery to have a necessary protection circuit which is to prevent it from overheating. Otherwise, not only the high work temperature will reduce the lifespan but may cause short circuit as well.

However, what we haven’t considered is that these circuits are also consuming the power energy so that each time of activation it will make the laptop battery to reduce its performance. In the process of charging and discharging, these circuits will work until the battery is close to full or empty. When activating frequently, they are bound to act and may produce more internal resistance.

Of course, as there’s a little memory effect in lithium-ion laptop battery, we still need to activate it but cannot do that so often. If so, it won’t help the battery to improve its performance but reduce its lifespan rapidly.

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by: USB Phone World