On board Battery Fuel Gage for 12/20 volt systems

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  • anonymous
    • Sep 2025

    #1

    On board Battery Fuel Gage for 12/20 volt systems

    Hello I have These small units that monitor the state of a battery or packs.
    The way I use them is to sodder on the red leds leeds 2 wires to the exterior of the sub or boat in any location so that when it goes out I have still enough juice to make it to port and since it turns off at 7.5 volts it is a great way not to deep descharge the batteries.Also if there is a short or unusual load the led will dim or go out during the run telling you to come in.
    About an inch squared and very light,open pc bourd construction makes it eaqsy to modify for any voltage!
    Reverse voltage protected.

    I am taking orders on these units for $15.00 each.Plus SH

    E mail me for more info at subcreator1@aol.com
  • michael wernecke
    Junior Member
    • Dec 2006
    • 3

    #2
    Battery Fuel Gauge

    Hello Deepdiver,

    I like your battery fuel gauge concept and product.
    I'd like further information please.
    E-Mail me At : ocean_tech04@yahoo.com

    Thank you
    Michael Wernecke
    CEO International Ocean Research

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