Having a day...and need some help..

Or a dead or bad battery.
If it was a on a trickle or self regulating charger the whole time, then it should have started on its own without the charger attached.

I think at this point, the best things to do are:
1) look at the mechanical connections and wiring.
2) Check the battery condition. I dont know what you in terms of battery or tools. A voltmeter reading will give a ballpark idea of the charge state and condition. A hydrometer is another, better, way.