How long does 4400mah battery last

For example, what laptop are we talking about using these batteries in? What is the power draw of the laptop we are talking about? For example This is a laptop with an Intel P4 3. If the processor were slower, the screen was smaller, and there was only one cooling fan, these batteries would last longer. If the processor were newer, utilizing better power saving technologies, the batteries would last longer. The basic idea is that mAh battery pack will allow your laptop to run longer than a battery with a mAh rating.

Generally speaking this is true, but it is not the whole story. Lets say your laptop need 20 watts of energy to run per hour. A battery pack that stores 60 WH watt hours will provide you 3 hours of run time.

So where does mAh fit in to this equation then? Example 1: mAh x Example 2: mAh x When choosing a laptop battery, you should first make sure that it is compatible with your computer, and then consider the materials it's made out of.

It's also best to look at the power rating and service life, since these have a large impact on its performance and lifespan. Additionally, you may want to consider whether you want a brand name or generic replacement, as well as whether you want a new battery or a refurbished one.

Whichever one you choose, you should also look at any warranties offered, and make sure that it complies to safety standards. The first thing to look for when buying a new laptop battery is compatibility with your computer. Most are made to work with specific models of computers, and have this information listed in their product descriptions.

To make sure that one will work with your computer, you'll need to know the make and model number of your laptop; if you don't know this offhand or don't have the necessary paperwork, check the inside of your laptop's battery compartment while it is off and unplugged. You may also find the part number of the battery, located on its casing.

NiCad batteries are largely obsolete, since they are very heavy and don't last very long. They also weigh more, and have the "memory effect," which causes them to lose the ability to fully recharge.