Not unless it'* your second battery run behind an isolator.
Yellow tops aren't designed or intended as primary batteries, and when run improperly, will kill your alternator.
Don't fall victim to the audio-head ricer syndrome. A Red Top is a great battery for a primary battery. Yellow for audio BEHIND an isolator.
A little more detail on your intended application would help.
(to qualify this, even my local Autozone is now refusing to honor alternator warranties on cars with Optima Yellow Tops as primary batteries. They finally wized up)