might find something in here.
http://nz.bing.com/images/search?q=twin+battery+set+up+xj+cherokee+&view=detail&id=FB6651A802965B7E104A0BE71FEC9EA2ECEADB1B&FORM=IDFRIR
Tapatalk is active for this site! Just go to your phone's store to download and install.
Type: Posts; User: cantab27; Keyword(s):
might find something in here.
http://nz.bing.com/images/search?q=twin+battery+set+up+xj+cherokee+&view=detail&id=FB6651A802965B7E104A0BE71FEC9EA2ECEADB1B&FORM=IDFRIR
put 2nd battery in the back......????
have a read in here mate .....
http://go.jeep-xj.info/HowtoBatteryDual.htm