JEL- stop/start in the Disco Sport is a complicated beast, I have had issues with this since I bought my car and to date 18 months later the problem is still not resolved..My battery is not dead. I was just wondering. I was originally trying to figure out why the Auto Start/Stop never works was thinking maybe the battery is not charged. I hardly drive it during the week. I know batteries charge when driven. At some point down the road all batteries die. I was curious as to the cost of an aftermarket battery for a Land Rover Discovery Sport and could not any. The only thing I could find was the OEM battery.