What is the expect about laptop battery

Question:If the sony PCGA-BPZ51 battery is discharged and recharged completely once daily. if also that the battery is the four-cell type. Answer:Most laptop batteries have a lifespan of a few years before they start to significantly lose the ability to hold a charge.Many years ago, My laptop is about four or five years old, and the battery can only hold a charge now for 20-30 minutes, if I'm lucky.But now ,i have a new battery it can last 3 hours ,if you are interest in you can try it . Toshiba: Toshiba PA3191-2BAS battery , Toshiba PA3191U-1BAS battery , Toshiba PA3191U-1BRS battery , Toshiba PA3191U-2BRS battery , Toshiba PA3191U-3BAS battery . Hp: HP Presario V4000 battery , HP Presario V5000 battery , HP F2019 battery , HP Pavilion DV780 battery , HP n6400 battery , HP F2024 battery , HP F2299A battery Acer: Acer TravelMate 292 Series battery , Acer TravelMate 291LCi battery , Acer Aspire 2003 battery , Acer TravelMate 2355LCi battery , Acer Aspire 2001LMi battery , Acer Aspire 2002 battery . I wish you will kuckly same as me .