A laptop computer has an internal rechargeable battery that can be recharged about 1000 times before it needs to be replaced. One way to extend the life of your battery is to minimize the overall energy consumption your laptop uses on a daily basis. One easy way to extend battery life is to turn off the Wi-Fi when you have no need to be online. Another is to go into your laptop settings and opt for energy-saver mode, which will automatically dim or sleep your laptop after a short period of time. And even just reducing the brightness level of your computer can help extend the life of the battery.