Thanks, I have dont all you have sugested and seems like I have a defective board. I will try to contact DFRobot and see if they are willing to do anything.

thanks for the response, the solar panel is a 5V panel and maintains about 4.5V while under load and goes to 5V when no load due to the charging circuit turning off when the battery is above 4.2V.

when i completed my testing and noticed that it is hot the only thing connected was the battery so thats why im confused, it should have no load…. Also the charging side of the board still works and light does light up indicatting it is charging. i suspect the heat is coming from a short or something in the board from the failed component.