Team president Ed Stafanski said Wednesday that the 76ers want Battie to provide frontcourt depth and a "veteran presence" for younger players.
Terms of his contract were not disclosed.
The 6-foot-11 Battie has averaged 6.4 points and 5.3 rebounds over 12 NBA seasons. He has also appeared in 51 playoff games and was a member of the Orlando Magic's Eastern Conference title team in 2008-09.
Battie was traded to New Jersey last summer and played in 15 games for the Nets last season.