In 2010 Club Car changed the battery configuration from 4x12v to 6x8v and now has the same battery pack as the proven 48v DS model that has been used for the last 12 years.
The Club Car part numbers are:
AM1275201 - Precedent 12V TO 8V Conversion Kit - $345
103368401 - Precedent Electric Battery Bucket Assembly - $71.10

The conversion package, when part numbers are ordered together, includes all components and installation instruction necessary to convert to the 8-volt battery system. Components included are battery wires, hold downs, component mounting panel and shield, wire harness, charger receptacle, 4.0 OBC and safety decals.

I will update this later with the instructions.