I am going to have my XKR's battery tested and I wanted to know how to tell if the battery needs replacing.

Also, does anyone have a photo of what the OEM battery should look like? If the battery is indeed bad, would it be covered under Select Edition Warranty, assuming it's the original battery? Is the battery tested at the battery terminals, or at the remote terminals? Where are the remote terminals?

I'd like to get a lot of this sorted out before I go to the dealership, because the Jaguar dealerships here have a really bad reputation for their service departments.

 

The battery is tested by putting load on it (basically shorting it) and measure the voltage drop over a certain amount of time. It is tested at the battery terminals.

Mine was replaced under Select Edition warranty, not sure if it was the OEM battery that was in the car.