Whether I am using just the battery or have the power supply plugged in, when I turn the power on, the windows XP system does not load. Instead, the computer starts to load - with a black screen - and then shuts off and repeats this over and over and over until I either take the battery out or unplug the power supply cord.
If I leave the battery in - it keeps trying to load then shuts off again and again. I guess it would keep doing that until the battery was dead.