losing power from battery
hi can anyone help
it started last night
driving a long and my stereo cut out losing power from battery, car jumping along the road
i got to a safe place to park and the car died on me
to trying to start it again and nothing
got someone to push me started but died again
got a mate to jump start me only got 20yrds down road and died again
can anyone give me any idea on what it could be
thanks