| A number of laptop users, especially business people, travellers and students, cannot imagine their life without the laptop. Since it is portable, it can be taken aboard an airplane to watch movies or send/get emails from colleagues or business partners. Nonetheless, the laptops cannot operate day and night. Every now and again its battery requires re-charging. Scarcely has any person thought, when the first laptop battery appeared and what it looked like.
In fact, the history of laptop batteries is an exciting one. They have been updated and upgraded a lot of times, but they still have a long way to go before they are perfect. When we think of laptop batteries, many of us consider the rechargeable ones that we use nowadays. Still, a few decades ago AA batteries were widely used in laptops. It took many AA batteries to run a laptop. Moreover, it could not run for long. Some users remember the heavy lead acid based batteries. Not only did not they last long, but also they made a laptop heavy.
The manufacture of laptop batteries has been modified since then. Lighter nickel cadmium batteries (NiCd) superseded lead acid based ones. Yet, these batteries were not deployed a lot, because there were developed nickel metal hydride batteries (also known as NiMH). They lasted far longer and were lighter. Their main drawback was that they possessed the so-called memory defect. If the battery had not discharged to the fullest, it remembered it and its output was lower.
When lithium ion batteries (LiON) appeared on the IT market, users witnessed a great progress in laptop batteries production. These batteries are light-weight and do not produce any memory defect. They are deployed in laptops of the next generation.
Even though LiON batteries run non-stop for several hours, they require re-charging. Since more and more people buy laptops yearly, the demand for longer lasting batteries is ever growing. Certainly, there will be innovations until laptop batteries that do not require to be re-charged are made. Regardless of the purpose you switch on your portable PC for, you know that you require a long-lasting battery. You need to know the battery will not go dead when you need your portable pc most of all. |
