Where is the battery for a John Deere Model 35C ZTS Compact Excavator located on the machine? Also, my engine fires but will not crank. What is the most likely problem as it is full of fuel? After sitting since November it cranked and ran on Saturday but would not fully power up. Finally it powered completely up but began to stall seconds later and finally died. I thought it may be out of fuel, but after putting about 3 gallons of fuel in it, it was topped out. Now it fires but will not quite catch to run.