how to extend laptop battery life

I have bought a acer aspire one laptop in a few years ago.Recently, my laptop battery reduced again. In the past it can insist on 3 to 4 hours, now carry up to 1 hour only, will be ruined. I have used two laptop batteries already. Is there have any way I can extend the battery life .
Laptop battery really have a life, and its longevity directly affected by the charge and discharge times. If you are always installed batteries in the notebook computer , and disconnect the power shutdown mode, the battery will slowly discharge. When you connect an external power source, the battery will automatically begin charging. This constantly repeated charge and discharge, will significantly shorten the battery's useful life. Therefore, we recommend: When you use the laptop battery as far as possible every time to power the basic exhaust (less than 5%) and then plug in an external power supply for charging, and charging time should be controlled within 12 hours, and this is is the best way to avoid the memory effect. (In fact, this habit also applies to other electronic equipment batteries, including lithium ion batteries and nickel-hydrogen batteries.

If you use an external power supply in a fixed location for a long time, the best able to remove the laptop battery to maximize battery life. However, we should note that, even if the battery for long time also try to charge and discharge per month of their time, to ensure that their activity will not lost. In addition, if your notebook PC with a backup battery, then when it also needs care CAUTION: The battery backup for long time and does not charge excessive discharge phenomenon, please do not run out of battery power state of its long-term storage (half as much as possible about the remaining power). Of course, you should at least once every six months of their discharge and maintenance to maintain its optimum performance.

There has been significant performance degradation for the battery, you can use the battery calibration method to carry on the "Resurrection." Unfortunately, only a handful of laptop batteries to provide a correction function, for most uses, you need to do this manually. Concrete steps are as follows:

First, the abolition of notebook power-saving power management features, such as disabling the screensaver, the power scheme set to "always open" to "power shortage alert," the corresponding operation is set to "no action";

Retain only when "a serious power shortage alert," when the "standby" operation, in order to ensure that the system can be normal standby;

Then the screen brightness set to maximum, and save all data, close all of the program window;

After charging, unplug the power supply, so that a sustained small notebook current discharge;
Discharge end of the notebook will automatically be turned off, then plug in the power of the laptop for charging.
Repeat the above steps 2 to 3 times, you can save the batteries which has begun aging.