Thread: Rear Power Socket Panel Voltmeter

Hi folks, make sure that if you fit one of these types of meters, that they are either an LCD type with a MANUALLY selected BACKLIGHT, or if you use an LED type that it turns off when the motor is not running and/or has a push button control.

These devices can chew quite a bit of power if they are lite up with the motor off.

Originally Posted by drivesafe

These devices can chew quite a bit of power if they are lite up with the motor off.

Tried to test the voltmeter's current draw with an ampclamp but couldn't get consistent results.
Seemed to still have current flow even with voltmeter switch off and the reading was really variable?
Wired up like this:


Ampclamp seems to work just fine.
Checked the battery negative and one of the fuses:





What am I missing with this circuit?

Regards,
Scott