I have been having issues with my JD 285 leaking battery acid. I have checked the voltage while the tractor is running and it reads about 13.5V at idle. It will increase to about 14.3V at full throttle. It appears it is coming from the covers and I assume is boiling over. I have heard this is a common issue with unsealed batteries and JD's. Wondering if those voltages seem OK and my charging system is working as it should. Battery is about 1 year old.