FrSky QX7 3S, 2S and Plain Battery Panels

Back panel for FrSky QX7 radio. Intended for use with 18650 batteries. Holes in back panel are for balancing plug and a DC barrel socket. 3S and 2S versions available.

The hole for the barrel is around 8mm and I used this item for mine with a dust cap : https://www.ebay.co.uk/itm/2-1MM-X-5-5MM-PANEL-MOUNT-DC-SOCKET-CHARGER-POWER-JACK-DUST-WATERPROOF-COVER/321553675476

Because it should be printed with support, it is best to dry fit the back panel before assembling any electrics to it.