Table of Contents

1 Overview
  1.1 Scope
  1.2 Purpose
2 Normative references
3 Definitions
4 Technology overview
  4.1 Water loss
  4.2 Oxygen recombination
  4.3 Oxygen transport between positive and negative plates
  4.4 Immobilized electrolyte technology
  4.5 Hydrogen evolution
  4.6 Pressure-regulation valve
  4.7 Catalysts
5 Comparisons of vented (flooded) and valve-regulated technologies
  5.1 Reactions
  5.2 Construction materials
  5.3 Aging and failure mechanisms
  5.4 Electrolyte specific gravity
  5.5 Charging voltage
  5.6 Absence of free electrolyte
  5.7 Maintenance and testing
  5.8 Orientation in use
  5.9 Vented gas
  5.10 Historical service life
  5.11 VRLA advantages and disadvantages
6 Selecting VRLA batteries
  6.1 Temperature
  6.2 Charging considerations
  6.3 Space limitations
  6.4 Environment
  6.5 Life considerations
  6.6 Safety
  6.7 Thermal management considerations
  6.8 Maintenance considerations
  6.9 AGM and gel technologies compared
  6.10 Choosing the proper plate design and specific gravity for
       an application
7 Applying VRLA batteries
  7.1 Sizing
  7.2 Parallel strings
  7.3 Mixing VRLA with other types of batteries
Annex A (informative) Recombination and grid corrosion reactions
      A.1 Oxygen recombination reaction
      A.2 Grid corrosion reaction
Annex B (informative) Glossary
Annex C (informative) Bibliography

Abstract

Specifies methods for selecting the appropriate type of valve-regulated, immobilized-electrolyte, recombinant lead-acid battery for any of a variety of stationary float applications.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN
Supersedes	IEEE DRAFT 1189 : D13 2006