you may have to leave the ignition on if you intend to use the cig socket which may not be ideal in all cases
Am I corect in my asumption that a split relay will only kick in when the van bat is fully charged.I was chating to a guy about this the other day and he recons it is about 30mins befor the pump bat will start charging after the van has been fired up?The cig lighter sound a brill idea.