My engine/essential bus battery is mounted under the subpanel. I will be using a vented EarthX battery in this location as the battery is inside of the cabin.
EarthX sells a vent port and vent line. I chose to install this just ahead of the tunnel mounted fuel pumps.
This keeps the vent lines short and out of the way of the pedal arms.
![](https://airplane.allanglen.com/wp-content/uploads/2024/07/pxl_20240702_2104488955321858024212246490.jpg)
![](https://airplane.allanglen.com/wp-content/uploads/2024/07/pxl_20240707_0328400418512591372182012547.jpg)
![](https://airplane.allanglen.com/wp-content/uploads/2024/07/pxl_20240702_1333139678886020694985118897.jpg)
![](https://airplane.allanglen.com/wp-content/uploads/2024/07/pxl_20240702_2105070117410671515546741089.jpg)
![](https://airplane.allanglen.com/wp-content/uploads/2024/07/pxl_20240702_2105354262263007424421191959.jpg)