2005 Subaru Legacy Owner's Manual - Page 566

Maintenance and service Battery " Before beginning work on or near any battery, be sure to extinguish all cigarettes, matches, and lighters. Never expose a battery to an open flame or electric sparks. Batteries give off a gas which is highly flammable and explosive. " For safety, in case an explosion does occur, wear eye protection or shield your eyes when working near any battery. Never lean over a battery. " Do not let battery fluid contact eyes, skin, fabrics, or paint because battery fluid is a corrosive acid. If battery fluid gets on your skin or in your eyes, immediately flush the area with water thoroughly. Seek medical help immediately if acid has entered the eyes. If battery fluid is accidentally swallowed, immediately drink a large amount of milk or water, and seek medical attention immediately. " To lessen the risk of sparks, remove rings, metal watchbands, and other metal jewelry. Never allow metal tools to contact the positive battery terminal and anything connected to it WHILE you are at the same time in contact with any other metallic portion of the vehicle because a short circuit will result. " Keep everyone including children away from the battery. " Charge the battery in a well-ventilated area. " Battery posts terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to case cancer and reproductive harm. Wash hands after handling. Never use more than 10 amperes when charging the battery because it will shorten battery life. It is unnecessary to periodically check the battery fluid level or periodically refill with distilled water. - CONTINUED - 11-67