What's the highest wattage you can achieve with the standard 12v dc car port?

You can calculate wattage on DC circuits by multiplying volts with amps. The only indication the seller gives in the description that 12V cars have limitations on power delivery over 24V cars is the note at the end that says 20V outputs are only possible with 24V cars. If this is correct, the max the USB-C port can deliver is 15V x 3A = 45W. The max the USB-A port can deliver is 12V x 2.5A = 30W. The description says the max dual charging is 63W (= 45W + 18W). So I assume the USB-A port is limited to 18W if you are also using the USB-C port regardless of if the car has a 12V or 24V battery. It is only possible to get 65W out of this device if you have a 24V car and you aren't using the USB-A port. So most people will not be able to get 65W out of the USB-C port despite the images clearly claiming 65W output on the usb-c port with 12v on the LED display. I would call this fraud.

Will this drain my car battery when left plugged in car?

Dear, under normal circumstances, this is not the case. 1. Now vehicles generally have a trip computer, the trip computer will take the initiative to turn off the power supply of the vehicle's electrical equipment for a period of time after the vehicle is turned off, so naturally the car charger will have no source of power supply. 2. For some very old models, there is no power off for the trip computer, but the power consumption of the car charger is milliamp, which is negligible compared to the tens of amp hours of the vehicle's own battery.

Does this car charger wireless come with a port to plug into the cigarette lighter?

What kind of garbage company sells a product like this WITHOUT a car charger? They do NOT include the car charger so this trash is going back to Amazon!

Item Weight	0.01 Pounds
Unit Count	1.0 Count
Number of Items	1
Material	Rubber
Color	black
Energy Specifications Met	Qi
Output Current	15 Amps
Output Voltage	20 Volts
Power Source	Corded Electric
Power Plug	Type A - 2 pin (North American)
Main Power Connector Type	USB Type C
Portable	No
Input Voltage	12 Volts
Mount Type	A/C Grid Vent
Amperage	15 Amps
Total Usb Ports	1
Wattage	15 watts
Connectivity Technology	Wireless
Connector Type Used on Cable	USB Type C
Compatible Devices	Apple】iPhone 14/14 Plus/14 Pro/14 Pro Max/13/13 Pro/13 Pro Max/13 Mini/12/12 Pro/12 Pro Max/12 Mini/SE/11/11 Pro/11 Pro Max/Xr/Xs/Xs Max/X/8/8 Plus;【SAMSUNG】Galaxy S22/S22 Plus/S22 Ultra/S21/S21 Plus/S21 Ultra/S21 FE/Note 20/Note 20 Ultra/S20/S20 Plus/S20 Ultra(5G)/S20 FE/Note 10/Note 10 Plus/ S10/S10 5G / S10e/S10 Plus/Note 9/S9/S9 Plus/Note 8/S8/S8 Active/S8 Plus/Note 7/S7/S7 Active /S7 Edge/ Note FE/ S6/S6 Active/S6 Edge/S6 Edge Plus/Note 5;【Google】Pixel 7/6 Pro/5/4 XL/4/3 XL/3, Nexus 6/5/4;【ONEPLUS】OnePlus 10 Pro/9 Pro/9/8 Pro;【Sony】Xperia 1 III/1 II/10 II/XZ3/XZ2/XZ2 Premium/Z4V;【LG】LG Wing/ Velvet/V60/G8/V50 /V40/V35/G7/G6/V35/V30;
Compatible Phone Models	Samsung Galaxy S22 / S22+ /S21+/S21/S20+/S20/S10e/S10/S10+ /Note 10+/Note10/Note 9/Note 8/Note 20/Note 20 5G/, iPhone15/15 pro/iPhone14/14 plus/14 pro/14 pro max/13/13 Pro/13 Pro Max/12/12 Pro/12 Pro Max/iPhone SE 2020,11 Pro Max/11 Pro/11/Xs Max/XS/X/XR/8 Plus/8, LG G8 ThinQ/V50, and All Wireless Charging Compatible Phones
Additional Features	Enlarged Charging Coil, 15W Fast and Safe Charging, Solid Y Bracket Structure Avoid Shaking, Tightest A/C Grid Vent Mount Clip

Wireless Car Charger, Baseus 15W Fast Charging Phone Mount for Car Vent, Car Phone Holder with Enlarged Charging Coil for iPhone 15 14 13 12 11 10 8 Pro Max Xs, Samsung Galaxy S&Note Series Google LG

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