I recently received a used Compaq Presario 2100 Notebook for my birthday, and its performance is less than satisfactory. I have to keep it plugged in because when it runs on battery power alone, even if it says it has 1 1/2 hours of battery left, it shuts down after about half an hour. I usually put the computer in standby when I'm not using it. Also, after about an hour's use, the computer will shut down with no warning. If I try to reboot it, it shuts down again before it even loads the screen that says "Compaq". I have to wait 5-10 minutes before it will turn on and run, and then it will shut down again within 30 minutes. I've also noticed that the notebook with get very hot after some time of using it, but I'm not sure whether or not this is standard for laptops. I researched it online and found that the battery for my computer was recalled in 2005. I checked the battery bar-code and it begins with L0, so it should apply to the recall. So what I'm wondering is whether or not I am still able to receive a free replacement battery or if it's too late. I put my data into the HP website and it said that "your battery is not affected or is not a part of the replacement program". Is this true, or is HP wrong? If I'm not eligible for a battery replacement, what are some suggestions to improve the quality of my laptop?
Some other info, if necessary:
I use a Windows XP Operating System
I mainly use my laptop for internet browsing and word processing, with a few games here and there. I would watch videos, but the quality is too crappy.
I use 11.7 GB out of my 27.9 GB capacity
Any help is appreciated and I thank you in advance!