I was out fitting bits and bobs to the car, rinsing it off etc etc, and all of a sudden the aerial dropped

& the music stopped.

I assumed the battery was flat and took the car off acc.

Ignition was on but engine was off if the terminology is correct.

Battery charge indicator looked low

(50%).

Needless to say I removed the keys, finished up what I was doing, and then turned the engine over and it started.

It flashed hazards twice and the starter turned very slowly.

Nevertheless it started and I ran it for c.

10 mins.

This is the first time I've left this car on for so long without the engine running.

I did once do it in my old 2 and the same thing happened

- ended up replacing battery for peace of mind.

Is 2 hours the expected time to flat? Or is my battery goosed, or potentially not reaching full charge? My colleague's car will happily run the radio etc

(and its glow plugs

- which are more energy consuming than sparks I believe) for 9 or 10 hours

- a 53 plate Megane 1.9 Vin Diesel.
