One is the question of how many times have you recharged the battery since you've had the laptop? IIRC, it is about 500 times that is the average threshold for when you should replace the battery.
Second, what are you doing with the laptop as some operations may drain the battery more than others, e.g. if the CPU is near maxed all the time then it may drain faster than if the CPU is typically at 20% or less.
I own a 3-year-old Pavillion zv6000.
I usually try to keep the battery charged 100% at all times (maybe this is not optimal), and run the laptop on AC power as much as I can.
But about a week ago, my computer suddenly shut off while I was working with my charger plugged in. That's when I noticed my battery was not working properly, and below are my observations:
When I am running my computer with my charger plugged in
* The battery lamp (blue thunderbolt that lights up when charging battery) is FLASHING/BLINKING
* As soon as I unplug the charger, the flashing/blinking stops
* Windows indicates that the laptop runs on battery power, regardless of whether I plug my charger in or not
When I turn off my laptop and plug my charger in
* The battery lamp will light up normally, and the battery will be charged until 100% (able to run for about 1 1/2 hrs after each full charge)
Not to be redundant, but the problem is that I am able to charge my battery but only after I turn off my computer. My laptop only allows me to run on battery even if I have my charger plugged in (battery lamp blinking), so the maximum I can work on my computer each time is however long the battery lasts for (about 1 1/2 hrs), and I will have to shut down the computer, wait until it charges back up, and then start windows.
I don't know if it's a hardware problem or a software problem, but one thing is for sure -- 1 1/2 hrs of continuous work time is not at all enough for a college student like me. I am trying to identify the problem right now so I can weigh the options of whether to fix the problem or to buy a new one instead.
If you have any input/suggestion, please let me know!
Thank you so much for the help.