How do I know if my exit sign battery is bad?

All batteries gradually degrade over time. How fast this happens depends on both how often they are used and their general environment (e.g. temperature, humidity, etc.). Chemistry is also a factor &#; Lithium Ion batteries, for example, last longer than sealed lead acid batteries.

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Be aware that batteries degrade and require replacement even if they are never used so periodic checking of the unit or units in your exit sign is critical to ensure they will work when needed.

Checking a Single Emergency or Exit Sign for a Bad Battery

To know if the battery is bad in your exit sign, push the test button on the bottom edge of the exit sign and hold for thirty seconds, a broom handle comes in handy for this.  If it does not light up for the entire thirty seconds, you have a bad exit sign battery.

Checking Multiple Emergency or Exit Sign for Bad Batteries

To check multiple exit signs all at once, if it is convenient, shut off the power and verify that all lights stay lit for 30 minutes. When shutting off a breaker box, make sure you have shut down all computers and machinery properly.

Replacing Bad Emergency or Exit Sign Batteries

If the battery is dead, open the exit sign and take note of the part # on the battery. You can then call a battery wholesale or retail company or go online and use a search engine to find the correct replacement battery for your exit sign.

If you can&#;t locate a part number on the battery or maybe it is not legible, you can note the voltage, amperage, terminal type of the battery and measure the length, width and height of the battery and call a battery supplier to identify it. Your typical customer friendly battery supplier can walk you through how to identify what battery you have if it gets complicated. Other possible reasons your exit sign may not work may include bad bulbs or bad wiring.

You can use Battery Guy to help find a replacement battery with our Six Ways to Find Your Replacement Battery search engine.

If you are looking for more details, kindly visit exit sign replacement battery.

When to Check for a Bad Exit Sign Battery

Exit batteries do not operate your exit sign at all times and are designed only for back up in emergency situations when you loose power. The battery in an exit sign in most cases is designed to last at least 90 minutes during a power outage. When power is going to the exit sign, the battery is charging.

It is highly recommended that you check your exit signs on a regular basis to make sure they are operating correctly. Most exit signs fall under governmental guidelines and codes to assure the safety of the buildings occupants during an emergency.  If you don&#;t keep up with your exit sign batteries, your inspector will and you possibly could be fined.

About Maintenance

Correctly selecting and properly installing all necessary exit signs and emergency lighting is not the end. Testing and maintenance are also required. Egress pathways need to be kept clear. Any clutter which can hide or impede the proper operation of exit signs and emergency lighting need to be removed. Equipment may have become physically damaged, over time batteries lose the ability to hold charge, and bulbs and lamps grower dimmer and finally stop working. Following NFPA guidelines, mandated in most states, will keep your fire safety equipment functioning as it is intended.

NFPA 101®, Life Safety Code® 7.9.3 & 7.10.9 require that exit signs and emergency lighting systems be maintained according to the following:

• visual inspection of the equipment once every 30 days
• 30 second illumination test under battery-backup power performed once every 30 days
• 90 minute illumination test under battery-backup power performed once every year
• written records of visual inspections and tests to be kept for inspection by the authority having jurisdiction

Allowances are made for the types of testing capability that may be built into each unit:

• 7.9.3.1.1 refers to equipment that needs to be "Manually Tested" (i.e. by pushing and holding down the "Test Button" on the unit)
• 7.9.3.1.2 refers to equipment designated as "Self-Testing / Self-Diagnostic" (i.e. has built-in circuitry that can perform the 30 second monthly and 90 minute annual tests)
• 7.9.3.1.3 refers to equipment designated as "Computer-based Self-Testing / Self-Diagnostic" (these advanced integrated systems allow testing to be controlled by computer)

Maintenance Tips

• Look for exposed or loose wiring (frayed wiring is itself a fire hazard and loose wiring can be accidentally snagged and lead to further damage). Any loose or exposed wiring should be secured.
• Is the unit securely mounted to the wall or ceiling? If not, this could easily lead to further damage.
• Look for cracks or blemishes in the housing. These could be considered cosmetic, but outdoor units with cracks may need to be replaced because of water seepage issues.
  [ Consider purchasing and installing protective guards & shields to protect your exit signs, emergency lights, and exit light combos from physical damage. ]

• "Manual Testing" - find the "push-to-test" button which is usually a distinctive red button. Depressing this button will interrupt AC power and engage the back-up battery. Exit signs should stay illuminated, and emergency lightings should turn on. Hold the button down for 30 seconds, noting that the illumination also stays on for the full 30 seconds.For facilities with large number of units, consider investing in "Self-Testing / Self-Diagnostic" exit signs and emergency lights.
• "Self-Testing / Self-Diagnostic" - This equipment has a "push-to-test" button and a diagnostic LED which illuminates to convey test results. While the actual self-test process may vary based on manufacturer and model, the following example shows how this feature works in general. Find the "push-to-test" button and push the button twice to activate the 30 second test. Leave, do something else and come back. Examine the LED telltale. Steady Green indicates normal service, while red (steady, double-blink, or triple-blink) indicates a failure of some sort. Press the test switch button again (once) to reset. (In addition to the above manual test process, these units can be set up to automatically perform a 30 second battery self-test once every 30 days).
• "Computer-based Self-Testing /Self-Diagnostic" - All testing is triggered and tracked via computer.
  [ The Exit Light Company does not carry this type of equipment at this time. ]

• "Manual Testing" - Same as above, except a clamp of some sort is recommended to depress the button for the full 90 minute test.
• "Self-Testing / Self-Diagnostic" - Same as above, except depress the "push-to-test" button 4 times to activate 90 minute testing. (In addition to the above manual test process, these units can be set up to automatically perform a 90 minute self-test twice every year).
• "Computer-based Self-Testing /Self-Diagnostic" - Same as above.

After Testing

Now is the time to evaluate repairing or upgrading versus replacing. For units that are in need of repair, The Exit Light Company carries a full line of replacement batteries, bulbs & lamps, as well as energy-efficient LED retrofit kits to upgrade older style exit signs with incandescent bulbs. The Exit Light Company also carries extremely modern, energy-efficient, cost effective exit signs, combos, or emergency lights.

Best Practices Tip: When evaluating cost of ownership, don't forget to consider self-testing / self-diagnostic exit signs and emergency lights for reduced maintenance time, and power-free exit signs which require no wiring and use no AC for zero energy costs.

For more Emergency Lighting Productsinformation, please contact us. We will provide professional answers.