I was wondering if anyone  knows if HP laptops and the BATTERIES are a known problem ?

I'll explain further, about a year ago my Pavilions battery started going south. Constantly powering off after minutes if not plugged in. As usual I came here did several things suggested to try and remedy the problem to no avail. I bought a new battery. The new battery lasted about 3 months and the same thing started to happen. Since, for me, it's not a big deal having to be plugged in I said forget it I can live with it.  My Daughter who is in college also has a Pavilion and now the same thing is happening to her ? UNFORTUNATELY she needs her laptop to be mobile. Mine is approx 4 years old and hers is approx 3, about the same TIME my initial problems stated.

Any theory's ? or known problems.

As usual thanks much.
MP.I am not aware of any issues with HP SPECIFIC batteries. The BIGGEST battery killer are users who constantly keep their laptops plugged in, and only unplug when they go mobile. These batteries to last have to be cycled drained and charged or they build whats known as memory and go south quickly.

What are the model numbers of these laptops so we can google it and see if there are any hits for issues.I only know mine because my daughter is in class I have a dv6 .