@techgeek70341 let us know it your computer works on the AC adapter. From what you are describing, you have a dead battery. It most likely has a couple of short cells. Time to replace it and re-evaluate.
To work on your laptop use the [document|38491|HP 255 G8 Maintenance And Servcie Guide] The part number for your battery is L97300-005, if your laptop is indeed a HP Notebook 7N4W2AA. Let us know how it all works out for you.