We have designed a unique mounting system for those using Advanced Radio AR1 connectors and batteries.
The connector mount is available in three configurations. Flat mount, 90 Degree Side Mount and a 30 Degree Mount. The female AR1 connectors are inserted into the mount as shown in our assembly video. This allows easy connection of the Advanced Radio male battery lead resulting in a very clean installation.
https://approachrc.com/products/booma-rc-ar1-connector-mount-2-each?variant=41011998425159