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Will this 72W charger work with the Prime?

Discussion in 'Prime Accessories and Modifications' started by Henrik Helmers, Sep 5, 2020.

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  1. Henrik Helmers

    Henrik Helmers Active Member

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    Hello, I am trying to plan ahead for the new car. I sometimes bring my laptop and other accessories that I would like to charge. I found this 72W charger from Satechi and wonder if it will work with the Prime?

    Or are there other chargers you would recommend?
     
    #1 Henrik Helmers, Sep 5, 2020
  2. meeder

    meeder Active Member

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    As long as it doesn't go over 10A on the 12V side it will be OK.
     
    #2 meeder, Sep 5, 2020
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  3. sam spade 2

    sam spade 2 Senior Member

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    And as long as ALL of your devices actually charge through a USB port.
    If you have multiple devices, you might want a charger with multiple ports.

    And note that the power port on the car is hot ONLY when the car is running.
     
    #3 sam spade 2, Sep 5, 2020
  4. jerrymildred

    jerrymildred Senior Member

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    72W divided by 12V is 6A, so, yes, it'll work fine. With that USB C connector, just be sure you don't try to use it to power your laptop.

    Edit to strike out a brain fart. I think I'm gettin' old. :oops: Thanks for the correction, @Salamander_King.
     
    #4 jerrymildred, Sep 5, 2020
    Last edited: Sep 5, 2020
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  5. Salamander_King

    Salamander_King Senior Member

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    The spec on the adapter in the link is only 60W max on PD supported USB-C and 12W for the USB-A port. It should be fine. I use a similar but slightly lower 63W USB-C/A adaptor for my laptop all the time. Mine is 45W max for the USB-C port (PD3.0) and 18W max on USB-A port (QC3.0). It will take slightly longer to charge a larger laptop, but my laptop (Pixelbook Gen2) is charged in less than 60 min. And yes as already pointed out, the port is hot when your car is in READY mode. I think it may also be hot in ACC or ON mode, but be careful using any 12v port out of READY mode. You may end up depleting the 12v battery.

    Why not use USB-C connector for the laptop? OP is specifically asking about using it to power his "laptop". I am assuming his laptop has USB-C Power Delivery (PD3.0) compatible input port.
     
    #5 Salamander_King, Sep 5, 2020
    Last edited: Sep 5, 2020
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  6. ChapmanF

    ChapmanF Senior Member

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    Unless this changed for Prime, I think those outlets have power when the car is "running" (in READY) but also in ON or ACC. It's just that if it's not in READY you are taking charge from the aux battery that isn't getting replenished.

    A 72 watt charger isn't taking very much out of the aux battery and you could probably get away with a couple hours of that (so short only because of other stuff in the car that also uses power in ACC; if it were only the 72 watt charger it would be longer). The car probably has a timer that will turn ACC off after 20 minutes or so anyway.

    If you stay in READY the car will keep the aux battery tended and you can charge for as long as you like.
     
    #6 ChapmanF, Sep 5, 2020
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  7. Salamander_King

    Salamander_King Senior Member

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    #7 Salamander_King, Sep 5, 2020
    Last edited: Sep 5, 2020
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