Ray Allen chipped in 12 points and nine rebounds as Miami notched a second straight following a three-game skid.
The Bobcats got 22 points and 14 rebounds from Al Jefferson.
Ramon Sessions notched 16 points and five assists for Charlotte, which lost for the fifth time in seven contests.
Bobcats guard Kemba Walker left in the third quarter with a sprained left ankle.
Notable deaths of 2014 [PHOTOS]
Arizona Cardinals player formally charged