thanks to those who responded
further checking i have found that one of the 3 battery leads to the + pole
is drawing 70m/amps
1 goes to the starter solenoid
2 (with 2 fuses on) goes in to the relay box by battery
3 this one goes in to armouring possible to/ around alternator? & is the one constantly drawing 70 m/amps
does any body know what it does & is 70m/amps excessive?