The Audi A3 has a 12V accessory socket as standard, with USB-A and USB-C common on newer trims, so a plug-in 12V charger works on every car. Two-port chargers almost always share a wattage budget rather than delivering both ports at full rated power, so a 65 W + 30 W label does not mean 95 W in total.
Read the full Audi A3 USB car chargers guide →USB charging in the Audi Q3 starts with the sockets you actually have. On current UK trim the front picture is 12V accessory socket standard; USB-A + USB-C common on newer trims.
Read the full Audi Q3 USB car chargers guide →Three products we would look at first in this category. Fit for your Audi still comes first: check the compatibility list on the listing against your exact model and year, and read the model guide above.
Enough power for a laptop and a phone at once.
UGREEN 130W USB-C Car Charger with 100W Cable: see the price on Amazon →Compact dual-port charger for phones and tablets.
UGREEN Nexode 63W USB-C Car Charger: see the price on Amazon →Built-in retractable cable, no loose lead in the cabin.
Anker 75W Car Charger with Retractable USB-C Cable: see the price on Amazon →Affiliate links: as an Amazon Associate we earn from qualifying purchases. Prices are set by Amazon.
Each vehicle hub links to every accessory category for that model.
The generation, body style and boot figures above draw from these public references. See how we write these guides for the wider methodology.