Fishing Kayak Electrical box

Discussion in 'The Projects Forum' started by Brazilian Nut, Aug 19, 2013.

  1. Brazilian Nut

    Thread Starter New Member

    Aug 19, 2013
    Hello fellas, I'm installing an electrical trolling motor on my fishing kayak and I need help with the electrical diagram.
    My main question is how to install a volt/amps meter into my circuit so I could read how many volts I still have on my 12V deep cycle battery and also how many amps I'm drawing at any moment.
    Is it possible?
    I'm uploading 2 pix, one of the pieces I think I have to have together (I already bought all of them and just the volt/amps meter still didn't arrive) and one of the volt/amps meter.
    All help is welcome, thanks in advance.
    Last edited: Aug 19, 2013
  2. Kermit2

    AAC Fanatic!

    Feb 5, 2010
  3. KMoffett

    AAC Fanatic!

    Dec 19, 2007
    Do you have info/links on the meter and the shunt? Sometimes these meters cannot be powered off of the same voltage source that you are measuring.

  4. Brazilian Nut

    Thread Starter New Member

    Aug 19, 2013
    Hi Ken, thanks for your willingness in helping me.
    Here is the picture I got for the shunt and meter.
  5. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    Hey ya Nut. <smile>

    The first thing I see is a relay: these things take more current then they are worth, especially in a kayak where you can reach just about anywhere to turn off a switch and have very limited power available.

    The shunt looks fine for this, just again it will take more power to run then a simple analog meter would. I assume you have another meter for voltage: you should seriously consider putting them both on a momentary push button for power (so they are only on briefly to make a measurement).

    Running lights: you intend to be out at night? Will you be *stuck* out at night in times the battery is dead? Lights wouldn't work then... may consider a secondary power source for them. A small battery would do, they draw lots less power then the motor does.

    Just tossing out ideas, off to work now, will check back later.