It was Hensley's second start back after a bout with the flu.
One mistake was the home run he gave up to J-J Hardy in the fourth inning.
Claudio Vargas, the leading candidate for the fifth spot in the Brewers' rotation, allowed eight baserunners in four and one-third innings but let only two score.
Milwaukee manager Ned Yost says Vargas would have been better if it weren't for the desert elements.
A routine fly ball by San Diego's Adrian Gonzalez turned into an opposite-field R-B-I double, and Brian Giles got a gift single when Brewers shortstop Hardy lost a ball in the sun.
Rickie Weeks, the Brewers' new leadoff hitter, was 1-for-3 with a stolen base as he continues adjusting to his new role. Weeks is hitting .279.
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or firstname.lastname@example.org.