It's a jaguar battery that's on, don't know how old it is? Just tried to take battery out but the bolt that is vertical at left side of battery won't seem to unscrew don't want to force it, also read when battery disconnected handbrake needs resetting, anti trap on windows need resetting. Can't find how to do in handbook, it says section 4 for handbrake and section 3 for windows but can't see anything relating to this. Anyway can't get battery out anyway