Shortly after separating from The Masters of Funk, Voltio partnered with Karel, a neighborhood friend, to form Karel y Voltio. They released their debut album Los Dueños del Estilo in 2003. The album languished, however, and the duo’s enthusiasm dwindled. Karel was last featured in La Mision 4. Voltio was signed under Pina Records company. Pina stole money from Voltio and he left that company, then went into a musical battle (Tiraera Pina, Bling Bling, Wasa Wasa) against Lito y Polaco, Pina Records main artists. With few options, Voltio was preparing to exit the music business when Tego Calderón, a leading artist with White Lion Records, convinced him to sign with the label. Having taken Tego’s advice, Voltio released the album Voltage AC, with the hits “Bumper”, “No Amarres Fuego” (featuring Zion & Lennox) and “Julito Maraña”.

Having experienced relative success, Voltio returned with his a self-titled release in 2005, which included his biggest hit to date “Chulín Culín Chunflai”, which features Residente Calle 13 and a remix version with Three 6 Mafia. In 2006, Voltio was on Frankie 2006 remix of his “Puerto Rico”.

Voltio recently teamed up with Calle 13 to speak out against police brutality in Puerto Rico. On August 11, 2008, announced the publication of a documentary titled “En vivo desde Oso Blanco”. The production covers the time that Voltio spent in prison.

In 2014, Voltio left reggaeton and converted to Christianity.