The UPG (Universal Power Group) Gel Cell Battery is a state-of-the-art design battery made in Asia. This battery is a sealed (Non-Spillable), and requires no addition of water during the life of the battery. Battery is TRUE DEEP CYCLE can be mounted in any position, requires no maintenance and may be transported by Air or Ground without any special handling regulations. When a Gel Cell battery is charged, no hazardous fumes escape the battery case, as gases are processed within the battery itself. NON-SPILLABLE by DOT (Department of Transportation), ICAO (International Commercial Airline Organization) and IATA (International Airline Transportation Association) definitions.