ABSTRACT: GR-1200 replaces TR-NWT-001200, Issue 1, January 1992, but contains NO TECHNICAL CHANGES from that original document. It has been issued strictly to conform with the new Telcordia Technologies document format and GR process, and carries a new issue number and date.

GR-1200 provides the Telcordia view of proposed generic requirements for accelerated life testing of Valve Regulated Lead Acid (VRLA) batteries by increasing the temperature of the batteries and determining their lifetime at these higher temperatures.

Requirements are listed for various temperatures and conditions that the VRLA batteries should meet. There are some battery designs that will not meet some requirements because of the method of construction or the materials used in fabrication. These batteries can still be tested with accelerated methods but it will be more difficult and time consuming. Individual battery components can be tested but a fully functional production battery must also be tested. Accelerated testing will be encouraged and the GR will indicate acceptable test methods.