Emergency Light Manufacturers : Replace Your Emergency Light Battery Step By Step
According to OSHA guidelines, emergency luminaire owners should perform scheduled maintenance on a monthly and yearly basis. If the 90-second or 90-minute emergency preparation test proves to be unacceptable (ie, the light is off), the emergency light battery may need to be replaced.
Fortunately, the maintenance involved is actually very fast and simple, as most modern fixtures have a push-down test switch that gives you accurate battery readings. Pressing this test button activates the device’s cut-off circuit (analog AC power loss) and should trip the battery. If the battery is dead, the indicator does not light. This is really simple. The Emergency Light Manufacturers explains the replacement steps for the emergency light battery.
Replace your emergency light battery – step by stepStep 1 – Open the case with a screwdriver. Most emergency lights will use the Philips head, but some hazardous locations in the vandal-proof fixture will use a special hex head. I hope that you or your maintenance department will retain the bits it contains when purchasing the device.
Step 2 – Now that you have removed the board, you will see a lot of wires (don’t worry about it being normal). Some of these red, black, blue or white wires will be routed from the AC conduit to the voltage transformer leading to the switching circuit. One, two or several wires connect the board to the battery.
Step 3 – Depending on your emergency light, the battery can be a sealed lead acid (SLA) or nickel cadmium (NiCd) battery type. The SLA looks like a stroller battery, while the NiCd is usually similar to a regular household AAA battery, sealed in a protective plastic shrink wrap.
Once the leads are removed from the + and – contact points, most of the battery will slide out of the unit. Some cells will be placed in the bundle and you must remove them.
Determine the correct replacement batteryRemove the harness and battery from the case. The first thing to note is that the voltage is usually 6v or 12v. Never try to use a 12V battery in a 6V emergency light, and vice versa.
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