The red battery symbol doesn't mean your battery is flat — it means your battery isn't being charged. The alternator has either failed, lost its drive belt, or has a wiring fault. You're running on stored battery power only, and you've usually got 15–30 minutes before the engine cuts out.
Bob's Mechanical Repairs — independent family-run garage in Birnam, Dunkeld, Perthshire. Call 01350 727 276 or email [email protected].