HP 4540 s notebook crazy scary we can go to take notebook anywhere battery life long vgt used convenientHP is a good name and how old branded company HP launch many brand computer laptop notebook note 4540 S one of them that is easy to use easy to convenient we can go with notebook anywhere and used everywhere we can keep our data safeh_p 9but HP Pavilion launch many model that is like Note 4 540 s is popular low battery injection many colours durability HP all over India sarees station genuine part customer satisfaction letter to ICAI its neck HP UAE