The son of Galileo was still a maiden coming into today's race but had useful form and has always shown promise at home.
He sat close to the pace under Nicky Mackay, racing on the heels of the leader, Good Value.
Mackay moved up to join the leader at the two furlong marker and after a brief battle he forged on.
His old foe Maid In Rio and Oasis Fantasy ran on from the rear but Battersea was well in command and was drawing away late on, winning by a length and three-quarters.
Roger said: "That was a good race to break your maiden in. He is a progressive horse. He stays well and will be an even better four-year-old.
"We may look at the Melrose for him next."