Checking Electrolyte Level

WARNING: Do not allow battery fluid to come in contact with skin, eyes, fabrics, or painted surfaces. After touching a battery, do not touch or rub your eyes until you have thoroughly washed your hands. If the acid contacts the eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical attention.
Normally the battery does not require additional water. However, when the battery is used under severe conditions, adding distilled water may be necessary during the battery's life.

^ Remove the cell plug using a suitable tool.
^ Add distilled water up to the MAX level.