"specifications: Nominal voltage: 12v Nominal capacity (20hr): 7ah Maintenance: free * maintenance free * high discharge ability * low self-discharge rate * wide temperature range * powerful recover ability * long life cycle" "applications: Marine systems, security systems, radio transceivers, medical equipment, electric power systems, all kinds of test machines, computer backup power supplies, emergency lighting/small lamp fitting, railway engines/railway communications, uninterruptible power supply for banks, fire protections and security, telecom system"