In most cases a battery drains by itself from not running the tractor. I've had it on a 4020 where the tractor set for a few months and the battery goes almost completely dead. If you think it's more than I'm tellin you here bring it into a JOHN DEERe shop to have the wiring checked.
Where is the hydraulic fluid drain plug on a John Deere 7410 Tractor
Dead cell in the battery requiring a new battery. A light that is on pulling power from the battery. Relay stuck in the closed position. More than likely the battery has a dead cell.
A raidator in need of a flush will not cause a battery drain.
Highly unlikely.
The wrong spark plug wire(s) can cause engine problems including not running but won't drain the battery.
Yes it can.
A dead cell in the battery will cause it to loose it's charge overnight. The only fix is to replace the battery. Any light that is staying on will drain the battery. Also a stuck relay will drain the battery.
Dead cell in the battery. Something on which is drawing power from the battery. Stuck relay.
If it stays on all the time it will drain the battery
A short in the wiring.
there is a short some where in the electrical system... or a bad battery.
Dead cell in the battery, any light on the car that is staying on, or a stuck relay.