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I'm wanting to record bat echolocation calls using an Audiomoth recorder. However, I can't find out anywhere how long these recorders can record for on a full charge.

What is the longest duration someone has deployed these recorders for, for the purposes of recording bat echolocation, and at what duty cycle (recording continuously, or just at dusk for a few hours?)

Additional info in the comments: They operate using 3 AA batteries.

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  • $\begingroup$ Audiomoth is apparently the designation of the circuit module, could you tell us what power-supply you're using? $\endgroup$
    – Jiminy Cricket.
    May 14 at 6:12
  • $\begingroup$ They operate on AA batteries (3x)... $\endgroup$
    – Matt
    May 14 at 6:15
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    $\begingroup$ AA batteries vary in capacity by a factor of more than 6 times (Wikipedia). This is a tricky on-off-topic question, because we need to establish things which are more suited to our Electrical Engineering stack. I'll try anyhow. With the most powerful batteries, the tech spec sheet indicates you should get just a shade under 3 days/nights continuous use - but the device can be programmed to go into sleep-mode making it maybe 6 nights in total. Can you code? $\endgroup$
    – Jiminy Cricket.
    May 14 at 10:06
  • $\begingroup$ Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. $\endgroup$
    – Community Bot
    May 15 at 18:14
  • $\begingroup$ Thanks heaps for that! Those links provide really good info that helps me with this, and I think that's the best answer to my question. It is a tricky question as the way the device is programmed will have impact on the battery life, but what you've said helps a lot already. $\endgroup$
    – Matt
    May 16 at 21:44

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