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The primary function of telecommunication batteries are to provide continuous availability of services in situations of temporary system failure. Any shut down may impact services offered to both the private and public sectors (television, internet, radio, emergency services, etc.). Because lead-acid batteries have a long history of reliability and refinement, they remain the most popular back-up energy source. Most batteries are stored indoors, in separate spaces away from other equipment.


Telecommunication batteries are connected in series or in parallel to provide the amount of power needed for the particular system at hand.

The most common types of batteries include:

  • Flooded
  • SLA

Before the advent of VRLA batteries in the 1960's, flooded batteries were the staple in Telecommunications systems and still remain a viable option today. They require periodic maintenance and separate battery rooms with proper ventilation in order to prevent hazards to humans and the environments from sulfuric acid fumes. Presently, VRLA batteries are the most common type of battery used in Telecommunication systems. Like flooded batteries, they require maintenance (mostly to check voltage and prevent thermal runaway), but are able to be stacked both horizontally and vertically, in enclosed areas and tighter spaces.


  • Provide backup power in situations of power loss
  • Run in series of dozens or more batteries in accordance to power needs of the system
  • Can be Wet Cell or SLA. There are advantages/disadvantages to each type
  • Are supplied energy by power systems under normal operations to prevent self-discharge
  • Require periodic maintenance by qualified technicians.
  • Must be replaced every 3-5 years
  • Can be scrapped for money when batteries go bad



  • Telecommunications Companies
  • Battery Backup Systems Maintenance and Repair Companies
  • Scrap Metal Recycling Yards