You should also be aware that the battery are compartible for different laptop computer models. A certain laptop battery meant for a particular model will not work for another laptop model. We shall look at the different cell make-up of batteries.
If you have a 6-cell lithium ion battery as a substitute for you original HP laptop battery, then you don't need to worry about power for laptop notebook.
An extra 6-cell lithium ion battery is very good when you are on a trip, or in a place where you can't get a power point to charge your laptop battery.
This 6-cell lithium ion battery is compactible for HP models nc6140, nc6230, nx6115, nx6110, nc6120, nx6125, nx6325, and nx6310.
This type of HP laptop battery is actually meant for trips, and travels where you will not need to charge your laptop computer for a long time. It also has an improved battery life compared to the 6-cell type. Its specs are 14.4V, and 3.6Ah, and it is compactible for so many HP laptop models. Find out which one is right for you.
In summary, this type can give you an additional battery life of 4 hours. Getting an extra laptop battery for you laptop notebook is very essential because you might be in a place where you can't charge you laptop battery.