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My Eterna PRSQEM3 LED Emergency Light isn't staying lit. How do I change the battery?

1Answers
LaChristian
12/17/2025, 11:57:10 AM

If your Eterna PRSQEM3 LED Tri Colour Emergency Square light fixture fails to illuminate for the full three-hour duration during a power outage, it's likely the battery needs replacing. Here's how to replace it:

  1. Safety First: Turn off the power at the mains to both the permanent live and switch live circuits. Allow the existing battery to fully discharge.
  2. Initial Test: Restore power and allow the unit to charge for a full 24 hours. After charging, retest the emergency lighting function for three hours. If the light still doesn't last, you'll need to replace the battery pack.
  3. Battery Replacement Steps:
    • Remove the diffuser to access the internal components.
    • Carefully remove the battery case from the gear tray. Disconnect the old battery pack and cut the wires.
    • On the new battery pack, write the current date. Connect the new battery using the appropriate connector. The required battery type for the Eterna PRSQEM3 is a 3.2V 1500mAh Lithium battery pack.
    • Refit the gear tray and diffuser, ensuring everything is securely in place.
    • Restore power and allow the unit to charge for another 24 hours before testing.
    • Complete a full operational check and document the results.

Always consult the product manual for detailed diagrams and safety information specific to your Eterna PRSQEM3 model.

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