# New Hacker Gadgets Dual 21700 Battery Holder

**URL:** <https://forum.clockworkpi.com/t/new-hacker-gadgets-dual-21700-battery-holder/23216>\
**Category:** uConsole\
**Tags:** hardware\
**Created:** [August 24, 2026, 11:42pm UTC](https://forum.clockworkpi.com/t/new-hacker-gadgets-dual-21700-battery-holder/23216 "2026-08-24T23:42:08Z")\
**Posts on this page:** 1\
**Showing post:** 29

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**Author:** ![white-round-square](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.clockworkpi.com/white-round-square/32/10385_2.png) [@white-round-square](https://forum.clockworkpi.com/u/white-round-square)\
**Post date:** [September 11, 2026, 2:10am UTC](https://forum.clockworkpi.com/t/new-hacker-gadgets-dual-21700-battery-holder/23216/29 "2026-09-11T02:10:13Z")

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> [@John\_Simmonds](#):
>
> I wonder if these will help with the noise coming from the speakers after the batteries reach below 50%

you can try it:

> [@Audio noise when low power workaround](https://forum.clockworkpi.com/t/audio-noise-when-low-power-workaround/21014):
>
> It seems the issue is power saving mode on linux, at least for ubuntu, turn off sound card power saving. There should be similar settings for other distributions. For Ubuntu, edit the file: sudo nano /etc/modprobe.d/snd-usb-audio.conf Add the following content: options snd\_usb\_audio power\_save=0 Save and reboot. No noise on battery less than 15%, no noise on less than 10%.

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