when i charge the battreys up it starts first turn(its 24 volt) but after the jeep has been running and i switch it off it will not start again, the batterys are new and not the fault of them. if i bring power from the live to a fuse in the board it charges again but the wire heats up, any ideas i need to get shot of this wagon,

My advice is to start with the factory's (manufacturer's) standard vehicle configuration (unmodified). Then drive to an auto store or battery center that does battery and charging system checks for free. That makes sure that your (new) battery is good and that your alternator is charging properly. You can check to make sure there aren't any excessive "parasitic" current draws (amperes) from your battery that discharge it when the vehicle's parked. You say "it will not start again". Does that mean the engine won't crank (run the starter motor normally) or that the engine cranks ok, but won't fire the cylinders, start the engine and run normally?

http://www.aa1car.com/library/2002/cm10220.htm
http://www.aa1car.com/library/charging_checks.htm

All your accessories are draining your battery,but your battery is not getting charge, check your alternator.