Trying to do some photos of some flowers. I have two flashpoint zoom lion, an r2 pro c controller, 5ds 28-105L, fully light controlled room

It was all working fine and dandy till i tried to a 360° rotation. Was set to 360 shots, 2 seconds between shots. Everything fully charged. Made it 3/4 around and the flashes started needing 5 seconds to recharge. Batteries still show full. What could it be? I just tried again with a 5-second delay between shots and it only made it a third of the way through before slowing down

Now, im having issues just getting them to fire. I have both the flashes settings at:

Ettl M Zoom 24mm (Flash icon with up arrow?) Channel 1 slave A

Controller is set to:

A: M 1/128

Its firing but hella low.

Whats going on? If i turn it upnto 1/1 it works but isnt that going to kill the batteries? Am i missing something obvious? The red lights on the back of the flashes are blinking.