My 93 cvh 4/4 had the battery on left hand side on a mounting pkate just in front of the rear axle.
Access......pull back carpet on rear shelf to expose the wooden cover. Release the holding clips and remove. Probably no tool tray as it will be under bonnet against the bulkhead on driver's side.
Earth from battery is to the chassis near the battery. There was a tight fit getting spanners onto the battery terminals so be patient undoing them.
It is worth considering fitting battery charger wires to a socket fitted to the rear panel between the seats to eliminate accessing the battery the hard way! I have a Ctech unit that comes with a battery connection cable that I have used in preference to my cigarette/power socket, fitted direct to battery terminals with a plug connector to the charger as standard. My battery is under the bonnet not hidden away!
