replace battery or buy one?

by angi1981 - 1/23/12 2:08 AM

hello friends,my hp pavilion dv6 laptop stopped charging its bttery about an year ago and still im using my laptop when its pluged in.(if i forgot to plug in it will shut down in few SECONDS)
so i want to know is it safe to use my laptop every day with non recharging battery?(however i have used it everyday for an year with this problem by plugging it until i use).

secondly what is best and worth? replace a battery now or buy a new laptop?what do you recomend?
pls help me,all answers are appreciated!!
thanks