| With the increased usage of laptop computers | | | | these difficulties taken into account, these |
| nowadays, the demand for laptop batteries | | | | batteries are not widely used today. |
| have reached its peak. Laptop batteries are | | | | |
| specific to the make and model of the laptop. | | | | NICKEL METAL HYDRIDE BATTERIES |
| There are lots of laptop battery manufactures | | | | |
| like septechnologies who are capable of | | | | Nickel Metal hydride batteries are better |
| supplying batteries that are compatible with | | | | replacements for NiCd batteries. These NiMH |
| most of the laptops that are available in the | | | | batteries are compatible with most of the |
| market today. Though there are a lot of | | | | older laptops. The elimination of the toxic |
| manufactures of laptop batteries, there are a | | | | cadmium in this type of battery makes it |
| few things that have to be taken into | | | | environmentally safe than the NiCd batteries. |
| consideration while choosing a laptop | | | | Also these batteries are easily available in |
| battery. | | | | the market for a cheaper price. |
| | | | |
| ALL BATTERIES ARE NOT THE SAME | | | | LITHIUM ION BATTERIES |
| | | | |
| Most of the laptop users still believe that | | | | The lithium ion rechargeable batteries are |
| all the laptop batteries are the same. Though | | | | the type of batteries in which the lithium |
| the laptop batteries work on the common | | | | ion moves between the anode and the cathode. |
| principle that 'electrochemical reaction | | | | Lithium ion batteries are the most commonly |
| created forces a stream of electrons that | | | | used ones in consumer electronics. They are |
| traverse from one position to another in the | | | | currently the most popular batteries that are |
| laptop batteries and the negative and | | | | used in most of the portable devices. These |
| positive terminals send and receive | | | | LiON batteries have excellent energy to |
| electrons', there are also many differences | | | | weight ratio, no memory effect, and slow loss |
| between the laptop batteries that are | | | | of charge when not in use. However, the |
| available in the market today. To start with, | | | | unique drawback of the Li-ion battery is that |
| the location and shape of different terminals | | | | its life span is dependent upon aging from |
| of the battery may vary across different | | | | time of manufacturing (shelf life) regardless |
| models. Moreover, there are three different | | | | of whether it was charged, and not just on |
| types of laptop batteries that are available | | | | the number of charge/discharge cycles. So an |
| in the market today: | | | | older battery will not last as long as a new |
| | | | battery due solely to its age, unlike other |
| NICKEL CADMIUM BATTERIES | | | | batteries. Though the LiON batteries have |
| | | | this disadvantage, the advantages overweigh |
| The Nickel Cadmium batteries were the ones | | | | them is hence it is most preferred laptop |
| used in laptops in earlier days. These | | | | battery in use today. |
| batteries were preferred in earlier days as | | | | |
| they delivered high output at low cost. | | | | If you are still not sure about what type of |
| However, these NiCd batteries have many | | | | laptop batteries to choose, nothing to worry |
| drawbacks like overcharging, cell reversing, | | | | about. You can get the best batteries from |
| memory & lazy battery effects and dentritic | | | | experts like septechnologies. With all these |
| shorting. Moreover, these NiCd laptop | | | | kinds of laptop batteries, the industry is |
| batteries are not environment friendly. | | | | still hoping to find an alternative to |
| Cadmium which is a very heavy toxic metal | | | | maximize efficiency and to minimize cost. |
| requires special care during disposal. With | | | | |