Over the years there has been many technologies involved with notebooks, and laptop batteries are not any different. There are actually three distinct notebook battery types currently available. Having the difference between them will allow you to decide on exactly what to get when the time comes for a purchase.
In this article I'll discuss these different laptop battery types, and some from the advantages each one of these carries.
Nickel Cadmium - NiCd batteries were actually the first rechargeable laptop batteries ever. Manufactures loved them his or her cost was relatively low and they stood a high output. You will not find Nickel Cadmium batteries being used anymore, due to them being heavier rather than as efficient as the newer laptop batteries.
Nickel Metal Hydride - NiMH batteries can nevertheless be found all over the place -- for older model laptops. The rechargeable NiMH laptop battery was a big step-up for notebook technology mostly in part since they were more reliable compared to the NiCd batteries, plus they had a level higher output. The NiMH battery was also cheaper to produce, and far better to use.
The only issue with NiMH batteries is they could have a memory effect. Basically, unless you fully discharge the battery, it could consider this by leaving you using a very poor battery output.
Lithium Ion - LiON batteries have become used in most new laptops. Unlike the NiMH battery, LiON laptop batteries have no memory effect. LiON batteries may also be lighter than both NiCd and NiMH notebook batteries. These two advantages equal in the market to the Lithium Ion battery is the most favored and most expensive one of the various notebook power sources.
Maybe you are wondering which type of battery to obtain. Getting a Lithium Ion battery would be the solution, of course, if you have the money it is precisely what I recommend. If you fail to afford a LiON battery or your notebook isn't suitable for one, then finding a NiMH battery may be the next most convenient thing.