When we were away for 6 weeks recently I disconnected the main battery and the link on the traxide for the second battery and on our return the Disco started immediately. the only side effect was the trip meter and fuel economy readings reset. My disco does have a slow leak in the rear valve block though and this wakes the computer up to self level which is an additional drain on the battery.
The fuel tank was also filled.
Regards,
Tote

