andyfreelandy
Well-Known Member
- Posts
- 5,189
- Location
- Devon
Self inflicted this one!!
Several times recently with reduced usage of my TD4 the battery has gone flat.
Had a few mins spare today so carefully took a current reading with car locked and all systems stable.
Compared with wife's TD4. Hers was 40mA. Mine is 100mA.
Obviously this reduces the standby time by a factor of over 2.
Some logical tracing by removal of fuses feeding non ignition controlled circuits I identified Fuse 14 was adding 60mA to the leakage.
This feeds interior lights, instrument lights, alarm etc.
Then I remembered that a few years back in a rush I had connected the dab powered aerial to the interior light feed. The dab aerial amplifier takes over 50mA!!
As the interior light feed is permanently live this was the 'leak'. Not a problem until car used infrequently!!
Now rewired to be powered when accessory position selected.
Now standby current with car locked is down to 40mA.
So, a useful 'locked standby' current figure is 40mA and a DAB aerial is quite power hungry!!!
Several times recently with reduced usage of my TD4 the battery has gone flat.
Had a few mins spare today so carefully took a current reading with car locked and all systems stable.
Compared with wife's TD4. Hers was 40mA. Mine is 100mA.
Obviously this reduces the standby time by a factor of over 2.
Some logical tracing by removal of fuses feeding non ignition controlled circuits I identified Fuse 14 was adding 60mA to the leakage.
This feeds interior lights, instrument lights, alarm etc.
Then I remembered that a few years back in a rush I had connected the dab powered aerial to the interior light feed. The dab aerial amplifier takes over 50mA!!
As the interior light feed is permanently live this was the 'leak'. Not a problem until car used infrequently!!
Now rewired to be powered when accessory position selected.
Now standby current with car locked is down to 40mA.
So, a useful 'locked standby' current figure is 40mA and a DAB aerial is quite power hungry!!!
