My laptop has 2 years and I am very satisfied. Suddenly, he started to stop abruptly when he was in charge, had bugs when I activais a function and was extinguished. Phones vendors have discouraged me to change the battery, but I did not hear them. With this new battery, it is like new. I read indeed a battery supported only 500 charges, a life of 2 years. That was the age of my laptop. I am very satisfied with this new battery.