lil help

I know nothing on how these forums things work, or how to work them. But I'm here because of the kwad share program. I just really need help with batteries. I've got a brand spanking new AstroX Switch stretch. With a DalRC Engine 40a, 4-in-1 ESC, TBS Unify Pro HV, Runcam Micro Swift 2, FrSky...