Installing a GPS module

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Isaiah De Freitas, Feb 17, 2020.

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  1. Isaiah De Freitas

    Isaiah De Freitas Junior Member

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    Good day everyone,

    I want to install a GPS module in my 2016 prius C. I want to connect it directly to my 12v battery. Do you think it will drain my 12v battery ?

    It has a 180mAh 3.7v battery and the pins on the device accept 12v input. I dont have any other specs, i suspect it draws 0.2A as i let it stay on its battery and it died after 1.5 hr.

    This is the device:
     
    #1 Isaiah De Freitas, Feb 17, 2020
  2. Attila Fekete

    Attila Fekete Member

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    If you connect it to 12V battery, it will drain it. Though the 12V on the OBD connector is switched, so when the Prius is off, it has to work on it’s own battery.
     
    #2 Attila Fekete, Mar 16, 2020
    Last edited: Mar 16, 2020
  3. Grit

    Grit Senior Member

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    When car is off, Total parasitic drain more than 0.07 ampere is no bueno.
     
    #3 Grit, Mar 16, 2020
    Last edited: Mar 16, 2020
  4. sam spade 2

    sam spade 2 Senior Member

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    Connect it to the car's 12 V supply at a point which goes OFF when the car does.

    The wires going to that 12 V (cigarette lighter) accessory plug that you don't seem to want to use might be a good place.

    AND you need to be sure that the device actually accepts raw 12 V input.
    Most have a tiny power converter built in to the supplied 12 V cord.
     
    #4 sam spade 2, Mar 16, 2020
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