Hi all!
I want to add this voltmeter w/ key ignition on my Xiaomi Clone and I need to wire it so it reads the correct voltage (48V) and the key function will work
This is my controller diagram
What I have in mind is I will create a parallel connection in my battery to connect the black and red wire of the voltmeter but that will cause to the voltmeter to turn on indefinitly and deplete my battery (not sure) and where would I connect the third wire so that the power will only come to the dashboard once I turn the key on?
Any help is appreciated.
I want to add this voltmeter w/ key ignition on my Xiaomi Clone and I need to wire it so it reads the correct voltage (48V) and the key function will work

This is my controller diagram

What I have in mind is I will create a parallel connection in my battery to connect the black and red wire of the voltmeter but that will cause to the voltmeter to turn on indefinitly and deplete my battery (not sure) and where would I connect the third wire so that the power will only come to the dashboard once I turn the key on?
Any help is appreciated.