Laptop batteries have limited charge, so buying an extended-life laptop battery will increase the time you're able to use your laptop when you're on the go. In addition to this, the actual lifespan of a laptop battery is limited, so purchasing a replacement battery for your laptop computer will eventually become a necessity.
Don’t be fooled by cheap batteries.
Not all laptop batteries are created equal. There is a huge difference in quality between battery makers.
Computer batteries have a similar variation in quality. Cheaper laptop batteries use inferior, low grade battery materials that have a service life of 3 to 6 months. In addition, low-end batteries have an out-of-the-box failure rate as high as one in five.
If you have purchased one of these batteries, and are now in the market for another one, you know how difficult it is to return something when the vender has no phone number and you are responsible for the $50 cost of air shipping it back to the Far East to exercise the warranty.
If you are trying to minimize your costs, quality in battery materials represents the classic case where cheaper cost more and quality cost less.
It takes 6 low end batteries with a 6 month life to match 1 of our batteries with a typical 3 year service life.