Industrial Grade Tubular Batteries are specially designed to withstand 1400 cycles of deep discharge at 80% discharge levels. These Tubular Batteries have very uniform internal resistance and hence large numbers can be connected in series or parallel without any danger of misbalance within the battery bank. These Tubular Batteries are provided with ceramic vent plugs that arrest evaporation loss of water. Industrial Grade Tubular Batteries are used in uninterruptible power supply systems, inverters under same conditions, solar PV systems, telecom applications, both base stations and at repeater stations, backup systems in power stations and sub stations, switch yards, railways signalling use etc.