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ASTTBC RFPT — Fire Alarm Systems (AL) · Question

When should fire alarm batteries be replaced?

Lead-acid batteries used in fire alarm systems are generally replaced every 4-5 years or when they fail a load test during annual inspection (S536). Loss of cap

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Question: When should fire alarm batteries be replaced?

Answer options:

  • Every 10 years regardless of condition ✅ If they fail the load test during annual inspection according to S536
  • Every year during the annual inspection
  • Only after a fire occurs and they are drained

Correct answer: If they fail the load test during annual inspection according to S536

Explanation: Lead-acid batteries used in fire alarm systems are generally replaced every 4-5 years or when they fail a load test during annual inspection (S536). Loss of capacity during the test dictates replacement.

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