QUOTE (alchemy67 @ Aug 29 2008, 11:42 PM)

Thanks for the replies!
HIACE 4x4, can i ask you another question with you being a sparkie? I intent to put a sterling battery to battery unit on this camper to charge the leisure battery while on the move. Is it feasible / safe / ok to have the ctek charger permanently connected to the leisure battery when on site hookup and engine off? Do you know if it will it cause any problems having a setup like this? Cheers!
Most chargers incorporate reverse drain protection in them, so that they can be permanently attached to a battery regardless of the presence of mains power or not.
Check with the supplier of the charger, and if in doubt, put a diode rated at 10 amps in series with the positive line from the charger.