2013 Honda Insight Owner's Manual - Page 347

Checking the 12 Volt Battery Check the terminals for corrosion (a white or yellowish powder). To remove it, cover the terminals with a solution of baking soda and water. It will bubble up and turn brown. When this stops, wash it off with plain water. Dry off the battery with a cloth or paper towel. Coat the terminals with grease to help prevent further corrosion. TOC The battery gives off explosive hydrogen gas during normal operation. A spark or flame can cause the battery to explode with enough force to kill or seriously hurt you. Wear protective clothing and a face shield, or have a skilled technician do the battery maintenance. If your vehicle's 12 volt battery is disconnected or goes dead, the IMA battery level gauge reading will not be correct the next time you turn the ignition switch to the ON (II) position. It will show less than the actual level temporarily. It will show the correct level after you drive for at least 30 minutes. TEST INDICATOR WINDOW Check the condition of the 12 volt battery monthly by looking at the test indicator window. The label on the battery explains the test indicator's colors. If additional 12 volt battery maintenance is needed, see your dealer or a qualified technician. WARNING: Battery posts, terminals, and related accessories contain lead and lead compounds. Wash your hands after handling. If you need to connect the battery to a charger, disconnect both cables to prevent damaging your vehicle's electrical system. Always disconnect the negative ( ) cable first, and reconnect it last. Maintenance 344 2013 Insight