David Clark 9 Volt Battery Pack

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Part# 11-01783
MFR Model# 40862G-01


The new XL-9V 9 volt battery pack from David Clark is easier to operate, wear and store. It is 50% smaller and 50% lighter than previous battery packs.

The model XL-9V battery pack uses a 9 volt alkaline battery (40862G-01) to provide power to the headset ENC system. The XL-9V features an Auto Shut Off function to save the battery if the power switch is left on when the headset is not in use. The Auto Shut Off feature operates by sensing loss of microphone DC bias voltage when the headset is unplugged or aircraft audio system is shut off.

A switch is provided inside the battery compartment to control the Auto Shut Off feature. The XL-9V is shipped from the factory with this switch in the DISABLE position, which will provide continuous power to the ENC system whenever the power switch is on.

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I had a battery pack that seemed to work and then not work. So I order a replacement battery pack and the new pack solved all of my issues. The headset is now functioning as if it were brand new out of the box. thank you David Clark for continued product support.

Marc S Verified Purchase


January 14, 2022

I had a headset that needed this to work in a GA aircraft. It worked perfectly and made my headset more than a paperweight.

Daniel M
September 16, 2020


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Which model D/C headset does this module fit?

This battery pack is for the David Clark H10-13X Fixed wing headset part number 11-03819.

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