Forum Discussion

Oasisbob's avatar
Oasisbob
Explorer
Oct 07, 2018

VOLT METER LOCATION FOR INSTALL?

I a thinking location of volt meter install will affect output? Is that correct? Where is a good point of installation related to distance from battery and possible drains? Does the volt meter draw much power when idle? Thanks

8 Replies

  • Mount the volt meter some where it doesn't shine in your eyes all the time. You don't want to see it when watching TV or trying to sleep.

    Richard
  • wa8yxm's avatar
    wa8yxm
    Explorer III
    Voltage is identical if there is no load on the batteries and no charge.
    Voltage (relatve to battery) goes up as you approach the converter when charging and DOWN as you move away from the battery undre load. THe question is does it move enough for you to notice. on the heavy cable to/from the disonnect solenoid. likely no

    Modern voltmeters can easily be in the millions of ohms range buy even 50 year old analog meters were often 20,000 ohms per volt. so if it's a 20 volt scale (Normal for Battey meters (that would br 400,000 ohms or 12/400000 amps what is that .003mA?
  • MrWizard wrote:
    .....the 'KEY' for me is to connect the wiring directly to battery (run wires)....


    That’s what I did in my truck camper.

    My Trimetric panel is my voltmeter, plus a few other meters, and I don’t want it losing power just because I flip the main battery disconnect switch to “OFF”. The Trimetric panel and the Redarc DC-DC charger are the only things that are connected directly to the camper battery. Everything else is connected to bus bars on the other side of the battery disconnect switch.

    :):)
  • mount anywhere you like

    the 'KEY' for me is to connect the wiring directly to battery (run wires)
    or
    the DC input to DC fuse center (back of converter ?)(if an all in one power center)

    NOT on a lighting circuit
  • a pic of my battery monitor.



    Yes if you draw much on the connector etc it may read slightly low but has never affected the utility of knowing the voltage and knowing all is working as expected.
  • Easiest place to see but don’t become a slave to it. Enjoy your camping.
  • Location is not important. Voltmeters draw almost no current.

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