![Why does an aircraft's underwater locator beacon only last for ~30 days after the plane crashes? How is the beacon's 'pinger' powered? What would be the technical difficulties with extending the lifetime Why does an aircraft's underwater locator beacon only last for ~30 days after the plane crashes? How is the beacon's 'pinger' powered? What would be the technical difficulties with extending the lifetime](https://qph.cf2.quoracdn.net/main-qimg-ba27399823abe84386beb82a71388abe.webp)
Why does an aircraft's underwater locator beacon only last for ~30 days after the plane crashes? How is the beacon's 'pinger' powered? What would be the technical difficulties with extending the lifetime
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