Introduction
As the world increasingly comes to rely on electrical and electronic systems for its daily functions, both vital and mundane, it also becomes increasingly dependent on batteries. As electrical and electronic systems become smaller and more efficient, batteries provide the key to portability. And, even with stationary systems, batteries are becoming increasingly important to provide memory backup or keep essential functions operational when the main power is not available.
Not only has the world become more dependent on batteries in general, it has also come to appreciate the economy and reliability of rechargeable batteries. Thanks to rechargeable batteries, travellers can now work at their laptop computer throughout a ...
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