I'm thinking of installing a Voltmeter gauge to add to my collection of gauges.

Which battery should i connect to, Driver side or passenger side battery.

Is there a way to monitor both batteries with one gauge ?

Or would it be better to have a gauge for each battery. Thanks for any of advice. Mark

 

Mark...jmo but both batteries are hooked together, so no matter which battery you hook to it will read the same. You only need one gauge.

Floyd

 

most volt gauges have 2 wires. one ground and one power. you just need to hook it to power with the key on.