12.5v t idle but not over 14.5 if it is charging over 14.5 it will ruinthe batt.
But ccould it be you trickle charger is faulty and has to higher output ????
would still say it's the batt s if it's not charging then with the electric fuel pump and injection system all needing power you would not have got 50miles
But you could always buy a petrol slave starter motor
[Edited on 10-1-2005 by AGE996]