Exit Signs do more than just tell you how to get out of a building. During an emergency or power outage, they will continue to stay lit and provide a safe egress for fleeing occupants to follow. Except for a few non-electric models, most exit signs rely on electricity provided by the building's Alternating Current and, during emergencies, it's built in battery backup system.
All signs must undergo rigorous testing from a number of qualifying agencies, most notably Underwriter's Laboratories (UL). This ensures your sign will stay lit for a period of no less than 90 minutes when given a fully charged battery.
Meeting the 90-minute benchmark means these UL 924 Listed fixtures meet every other requirement laid out by the NFPA Life Safety 101 code, and can be used in practically any building in the United States.
After many years of use, you will eventually need to replace the Exit Sign's battery, so it is good practice to learn the three conventional battery types. The oldest and most widely used Exit Sign battery is sealed lead-acid, often in the 6 volt 4.5 amp range. They typically last between 3-5 years.
LED (Light Emitting Diode) technology has made modern Exit Signs much more energy efficient than older incandescents. This has made compact NiCad (Nickel Cadmium) a popular choice as they are smaller, more efficient and and last up to a 7 years. Most NiCads resemble standard 'AA' cells that are shrink-wrapped in white plastic.
Emergency Lights Co. has every battery replacement type to fit your Exit Sign or Emergency Lighting need. We are also lighting experts dedicated to helping you solve your battery needs. Call us at 800-480-0707 or email the production staff to place an order, get a quote or for any other requests.