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DIY B8 Wireless Charger

AndrewW Oct 9, 2019

  1. AndrewW

    AndrewW Registered User

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    So since I have fitted wireless CarPlay I thought it would be a good idea to also have some form of wireless charging. There's nothing really out there that I could buy so thought I'd have a go at doing it myself, as there is a 12V socket under the armrest I went for that location.

    I got an armrest cubby-hole tray from Amazon (£13) and a 10W wireless charge module from eBay (£4)

    Items to start with:

    IMG-2596.jpg

    Then filed a couple of grooves for the wires and combined the two:

    IMG-2599.jpg IMG-2602.jpg

    (Excuse the excess glue, needed it to be raised slightly so the micro USB cable still inserted freely.

    And the finished article:

    IMG-2603.jpg IMG-0014.jpg

    Phone is an iPhone XR and very close to the limit of what the tray will fit
     
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  3. Marky007

    Marky007 A4 Sline

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    Wow great job
     
  4. jdp1962

    jdp1962 Grumpy Old Man

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  5. V6_Man

    V6_Man Moderator Staff Member Moderator VCDS Map User

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    Brilliant effort mate. You taking any orders
     
    AndrewW and jdp1962 like this.
  6. NikNefedov

    NikNefedov Registered User

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    You got the link for the 10w wireless charger module?

    Easy and a good DIY!
     
    AndrewW likes this.
  7. AndrewW

    AndrewW Registered User

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    https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.co.uk/ulk/itm/264400145632

    I ordered the above, i’m only using a standard 12v -> 5v 2A cigarette lighter adapter so it won’t be working at full speed but is still pretty effective, usually gain about 20% battery On my 25-30 minute commute to while using wireless CarPlay.

    For anyone wanting to do the same it’s an extremely quick and and easy job.
     
    NikNefedov and V6_Man like this.
  8. briceportier

    briceportier Registered User

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    Did the same but first replaced all 12v outlets with dual USBs hooked to dual QC3.0 adapters themselves plugged into the original cigarette lighter/12v plugs... et voila!

    Sent from my SM-G965F using Tapatalk
     
  9. Super Nintendo Chalmers

    Super Nintendo Chalmers Registered User

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    Great little mod.

    Question, are you confident that the heat created whilst charging will not cause any issues with the glue melting?
     
  10. AndrewW

    AndrewW Registered User

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    Good question and not something I’ve given much thought to.

    The only thing that I can say on that is that immediately after glueing it triggered the over-heat protection on the charger and just flashed the LED instead of charging, until it had a little time to cool down, so I’d like to think that normal operation wouldn’t get anywhere near that hot and therefore should be fine. I guess time will tell.

    love the name by the way
     
  11. gary_a4_quattro

    gary_a4_quattro Registered User

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    Great job, thanks for sharing !!
     
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  13. MattS5

    MattS5 Registered User

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    Nice work! (what lead is that going from the device to the cigarette socket please?) USB to Mini, or USB to micro USB etc?
     
  14. AndrewW

    AndrewW Registered User

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    It’s a standard 30cm USB-A to micro-usb cable plugged into a cigarette lighter USB adapter.
     
    MattS5 likes this.
  15. lscolman2

    lscolman2 Registered User

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    Very impressed with this, I based my efforts on the same cubby hole from aliexpress, but instead used a 15w Letscom charger.
    Used a dremmel to cut out various parts of the cubby hole to allow the charger to fit, and this means I am still able to see the LED status light.
    The cutouts also meant that the vents are free on the charger, so should help with cooling.
    Also purchased a QC cigar lighter so should get full speed charging.
    I’ll give it a full test over the coming days and report back if there are any issues.
     

    Attached Files:

    Last edited: Nov 20, 2020
    Rossimac likes this.
  16. audiwaterpump

    audiwaterpump Registered User

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    Great work.

    Nicolas Tesla had wifi charging working nearly a 100 years a go.
     

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