... : Batteries, wet, sealed, maintenance-free, non-spillable. IATA:Not restricted for air transport-complies Special Revision A67Package group ... CAuto ignition Temperature:Hydrogen =580°CExtinguishing Media:Dry Chemical,foam,CO2Unusual Fire and Explosion HazardsHydrogen and oxygen ... compounds:Oxides of lead and powder .CONTROL MEASURES:Engineering Controls:Store lead batteries with adequate ventilation . ...