I'm not sure about all of the relays, but that is where the cigarette fuse is, if your cell charger won't work it is probably the fuse located in the trunk.
Everywhere. Just about every fuse box has relays in it. There are fuse boxes in the trunk, engine bay, passenger compartment...
The battery is located in the trunk.
boot is the trunk, the big hole with a lid on that keeps the back wheels apart.
The battery should be located in the trunk, under a carpeted lid, on right side.
Use your key to turn the lock on the rear of the vehicle.
Look in the right side trunk - remove the flat floor trunk panel which should allow you to pop up the raised portion of the trunk floor to expose the battery compartment.
Does it not have a key lock on the trunk lid.
In the trunk.
Behind the passenger seat there is a trunk release lever. Pull it straight out to unlock the trunk. (This is for a roadster)
The location would be in the owner's manual if it is still with the vehicle. If not, Jaguar is really good about catagorizing their fuse box locations with components. It will more than likely be in the trunk fuse box next to the battery.
in the trunk
there is open trunk switch in the glove compartment