Despite of the new battery has one year of warranty I decided try to preserve its durability. Then, I google for pages providing tips how to extend the battery life. There are a lot of urban myths about it and many times they advises don't distinguish amongst the existing battery technologies.
Finally, I found this interesting link. That article was written by a senior systems engineer and consultant at Dell and a technical marketing manager at HP.
As conclusion, I can say:
- Stop dispensable programs and services, avoid fancy features in your computer such as: high resolution screen, number of colors, among others; defragment your hard disk periodically for optimal disk access.
- For a new battery, charge it at 100%, then discharge it totally, finally charge it at 100%. Since, Lion-ion batteries have a microprocessor, this routine help them to determine its charge capacity.