<p><a href="https://i.sstatic.net/vdRgA.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/vdRgA.jpg" alt="enter image description here" /></a>I found that if I wrap a velcro band around the battery pack that is closest to the end, this eliminates the rattle.  Several layers of electrical tape would probably work too. Either of these would also prevent the batteries from slipping loose if subject to an impact.  Has anyone found this to be a problem?</p>

CC BY-SA 4.0
2023-05-22T22:30:45.427Z
2023-07-09T17:57:38.823Z
2023-07-09T17:57:38.823Z
Jay
<p>I have had this issue and also used Velcro around the battery banks to keep the board from rattling. Here is an image of what Jay mentioned above.  <a href="https://i.sstatic.net/ym8dP.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/ym8dP.jpg" alt="enter image description here" /></a></p>

CC BY-SA 4.0
2023-07-06T03:19:20.300Z
This picture is really useful - thank you. Do you think you could possibly Edit Jay's post and add the photo so it doesn't show up as two separate answers, since it is the same approach?
selene
CC BY-SA 4.0
2023-07-08T18:26:13.637Z
Hi Selen,e I just made the edit. I will wait until it is approved before deleting my other answer
Cory Hom-Weaver
CC BY-SA 4.0
2023-05-30T21:12:51.040Z
2023-05-30T21:12:51.040Z
Cory Hom-Weaver
<p>The long circuit board in the ST600/640 hydrophone recorders can rattle if the case moves rapidly, like on a struming cable.</p>

<soundtrap><hardware>
How do you prevent the circuit card from rattling inside a ST600/640 hydrophone recorder?
# How do you prevent the circuit card from rattling inside a ST600/640 hydrophone recorder?

(Asked by: username_0 on 2023-05-22)

The long circuit board in the ST600/640 hydrophone recorders can rattle if the case moves rapidly, like on a struming cable.

**Tags:** soundtrap, hardware


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## 2 answers

### Answer by username_0 on 2023-05-22. Score: 2

[![enter image description here](https://i.sstatic.net/vdRgA.jpg)](https://i.sstatic.net/vdRgA.jpg)I found that if I wrap a velcro band around the battery pack that is closest to the end, this eliminates the rattle. Several layers of electrical tape would probably work too. Either of these would also prevent the batteries from slipping loose if subject to an impact. Has anyone found this to be a problem?


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### Answer by username_1 on 2023-05-30. Score: 1

I have had this issue and also used Velcro around the battery banks to keep the board from rattling. Here is an image of what Jay mentioned above. [![enter image description here](https://i.sstatic.net/ym8dP.jpg)](https://i.sstatic.net/ym8dP.jpg)

> **Comments:**
> **username_2**: This picture is really useful - thank you. Do you think you could possibly Edit Jay's post and add the photo so it doesn't show up as two separate answers, since it is the same approach?  
> **username_1**: Hi Selen,e I just made the edit. I will wait until it is approved before deleting my other answer  

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