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Q&A · Survival

How often should I test my EPIRB’s battery?

May 8, 2026

Quick Answer

TEST_EPIRB_BATTERY: Test your EPIRB's battery every 6 months to ensure it remains functional and ready for emergency situations.

EPIRB Battery Testing Guidelines

Testing your EPIRB’s battery every 6 months is crucial to prevent a false sense of security. This interval allows you to verify that your emergency beacon is functioning correctly, especially considering the battery’s limited lifespan. Typically, EPIRB batteries have a shelf life of 4 to 6 years, depending on the manufacturer and model.

Performing the Test

To perform the test, locate a designated testing area with no obstructions or interference. Activate the EPIRB’s test mode, usually by pressing a specific button combination or inserting a battery test key. The device should then transmit a signal to a nearby receiver or a test station, confirming its operability.

Maintenance and Replacement

If your EPIRB fails the test or approaches the end of its shelf life, replace the battery immediately. Before installing a new battery, ensure you have the correct replacement part and follow the manufacturer’s instructions for proper installation. Additionally, inspect the EPIRB’s physical condition, checking for any signs of damage or corrosion that could compromise its operation in an emergency.

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