I was recently working on a project to do this, and more. Short answer is that what you want to do should be easy. Volt meter, and a single pole double throw switch. This will not join the batteries at any time, so you don't have to worry about further isolation. I want to use a cheap digital multimeter to do what you have said. I also want to measure amps going into or out of my aux batt, and 120 VAC output of my inverter. I took apart the meter, and found I would need some really fancy switch to be able to press a button and have it a) connect the meter to the appropriate wires in the van and b) set the meter to the correct input setting. Edward At 04:57 PM 2/19/2003, you wrote: >I have somewhat limited real estate for installing gauges in >the dash. I was wondering about the feasability of using one >voltmeter (with a switch) to read the voltage in two >batteries. One is an Optima Deep Cyle, and one is my standard >starter battery. Any reason this wouldn't work, or would >something about the wiring required remove the isolation >between the two bateries? I am using the "silver fridge >relay" setup from www.vanagon.com > >Thanks, >Chris |
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