What size battery do I need in order to run the SwayControl? BMPRO Customer Support December 17, 2021 01:20 The SwayControl requires a 12V battery system of greater or equal to 50Ahr. Related articles Does the SwayControl have fine-tune adjustment capabilities? Can I install the SwayControl myself? How do I remove the LED light on the SwayControl? Why is my SwayControl not showing any light indicators? My MiniBoostPRO is showing six red flashes. What do I do? Comments 0 comments Please sign in to leave a comment.