Laptop batteries are rechargeable, but over time they may need to be replaced. Shop around for the best deals on Dell laptop batteries or any other notebook computer battery.

The fact that your laptop has a battery is part of what makes it portable. With newer models, in fact, the battery can hold a charge for up to five or six hours, which generally makes it unnecessary for you to take along your power cord when using the laptop away from your home or office for shorter periods of time. The extended life of laptop batteries means no more searching for electrical outlets. When the notebook computer battery does eventually run out, it recharges as soon as you plug in the power cord. Eventually, laptop batteries may need to be replaced, and you will need to find the correct battery for your computer make - for instance, dell laptops require dell laptop batteries, and so on.

There are some precautions you can take, however, to make sure that your laptop batteries last a long time. First and most importantly, read the instructions in the manual, because recommendations vary. Sometimes it is suggested that you let the battery run out completely before charging it, for example, but not every notebook manual makes this recommendation.

Depending on how you use your laptop computer, you may be able to use the following advice: some professionals recommend that you avoid wearing out your laptop batteries by using them as little as possible. This means taking out the batteries when you are at home or in the office, and can use electricity as a power source. If the battery is left in, it is being used even when the power cord is plugged in. Of course, this advice is impractical if you often use your laptop outside of your home or office, and you may have to resign yourself to replacing the battery once or twice within the lifetime of your laptop!