When it comes to laptop batteries, the general rule of thumb is that they last between two and four years, or around 1000 full charges. This is due to a variety of factors, such as the type of battery (NiCad, NiMH, or Li-ion), how often the battery is used, and how old it is. It's important to note that the battery life isn't set in stone and can vary depending on the computer, battery, average usage, and computer habits. For example, Dell states that you will generally see a significant reduction in execution time after 18 to 24 months.
On the other hand, the Computer Hope website is a little more optimistic and offers a period of two to four years, approximately 1000 full uploads. Ultimately, when you should replace the battery depends largely on how you use it and how often your laptop runs solely on battery power. In terms of extending the life of the laptop's own battery, it's all about putting an end to some bad habits. Over time, the laptop's battery capacity decreases, which means that the battery needs to be recharged more frequently than when the laptop was first purchased and continues to decrease over time.
After the laptop has done a single full charge and the power adapter has been disconnected, the average battery life of the laptop is between one and ten hours. Fortunately, there are small habits you can practice that will help you conserve your laptop's battery life so that you don't have to recharge it as often. For instance, if you're not going to use your laptop for some time, charge the battery to approximately 50% before storing it. Additionally, programs like HWMonitor, Battery Bar, and Battery Care give you a lot of statistics about your laptop battery.
The quality of the machine and the laptop battery itself will largely determine its lifespan, which for a quality laptop model will normally be around 1000 charging cycles. As you might expect, there are many factors that go into determining the average battery life of a laptop. Learning to check the battery condition of a laptop is the first step in maximizing the battery life of your new laptop and ensuring that you get the best possible value for money from your machine.In general, the average battery life of a laptop on a single charge is likely to range from 2 to 3 hours and up to 7 or 8 (or more) hours. It's not always easy to determine how healthy or not the battery is since each cycle (in terms of the battery life of a laptop on a full charge) differs.