1993 Escort cranks but wont run. 4cyl 1.9 2nd gen.

Hey Guy's, hope you can help.
I recently replaced my valve cover gasket after leaking for sometime. My exhaust makes allot of noise in the manifold area, engine performance has been lacking. I left the lights on and the battery died. I used a sm. Portable charger set at 12 volt 6 amp. I had made both neg/pos. Connections directly to the terminals. I took it for a ride and it wanted to stall when I stopped ( replaced the intake gasket last year). Now the engine cranks (strong) but wont run. Tachometer moves when trying to start. Although the engine is cold the fan come on right away ( key in accy). Also I dropped a wrench down near the starter, I cant get to it, as my jack is inop. I have a mitsubishi stereo in my ford and I was trying to reset the code by disconnecting the battery first.