I recently put my beloved Jag away for winter storage, i disconnected the battery also. my question is what is the life of the battery? its an original 2005 jaguar battery. never had any problems so far..just being pro active.
thanx

 

in that car properly maintained ie water and charge...4-7yrs. Go buy a battery tender for $30-50, they keep the battery fully charged without overcharging and youll always have a fully charged battery