http://www.stormcam.org/battery-maintenance/
Should I add water to my car battery? It is about 8 years old and I was told to check the water level.?
car battery: maintenance free? How do I check the water level?
What is the average life of a car battery?
Maintenance free means just that. It is sealed and water cannot be added. Typical battery life is usually around 5 years max. You got 8 years out of it. Best to replace it.
Golf Cart Battery Maintenance – http://www.clippercartparts.com