scope:

This standard covers valve-regulated lead-acid (immobilized electrolyte) batteries, hereinafter referred to as VRLA cells (or modules), used as a reserve energy source that supports dcpowered telecommunications load equipment.

Purpose

The purpose of this standard is to aid in developing a common understanding between suppliers and users by defining proper operational use, storage conditions, and test criteria - both initial and lifetime - for VRLA cells (or modules).

Application

This standard is intended to be used to establish (a) initial physical and performance characteristics of VRLA cells (or modules), (b) performance expectations for these cells (or modules) throughout their lifetime, (c) operating conditions for the appropriate use of these cells (or modules), and (d) guidance for the designers of these cells (or modules).