The Supercharger doubles the battery life and reduces the recycle time by more than 50%.
Once mounted it is very secure so you can hold on to it while adjusting the flashgun underwater.
Recycle time to 40% power: ~0,7s *
Number of flash at 50% power: 700+ *
Complete assembly weight: 1150g *
*8x eneloop pro, Retra Flash PRO
Compatibility: Retra Flash Prime and Retra Flash PRO