UL 1989

Please note: All interim revisions for this edition available at time of your purchase will be included.

Standby Batteries

UL 1989

1 Scope

1.1 These requirements cover instrument batteries, enclosed batteries, emergency lighting and power batteries and uninterruptible power supply batteries.

1.2 These requirements only address potential risks unique to the utilization of a battery supply in a product. Products employing a battery supply shall comply with the basic requirements contained in this standard applicable to the type of product and its intended use.

1.3 These requirements do not cover risks that may be unique to certain cell chemistries, such as the fire and explosion risks of lithium batteries. Additional investigations are required to evaluate such risks.

1.4 The investigation of a family or group of batteries may be based on the investigation of batteries representative of the family or group.