I think I need a new battery. I got it to boot up perfectly with a different battery, but it is too big, and had to be held on with tape. Even with the new battery, I eventually got a notification in android saying invalid battery, which is expected while using a battery from another phone. They are only 16 bucks....
Considering your computer is running windows ME, it must be painfully slow. If you are just using it for chrome and Pinterest, I'd consider buying a chromebook, which are very affordable.
Check your power setting by right clicking the battery icon and power management and select balanced or high performance make sure it's not on battery saver
I had this happen to my early 2015 MacBook pro and I went to the apple store and it turns out the logic board was dead, from overheating. Now my fans don't really work even when the MacBook is hot, I have to turn them on manually with software.