Thlevel 12V Car Charger Switch Panel
Quick guide for the Thlevel 12V Car Charger Switch Panel. Learn how to install, wire, and use the PD Type C, QC 3.0, and voltmeter features for your vehicle.
Table of contents
Quick guide from the manual
This manual provides instructions for the Thlevel 12V Car Charger Switch Panel. The device is designed for 12V-24V vehicle systems and includes a PD Type C port, QC 3.0 USB port, cigarette lighter socket, LED voltmeter, and a toggle switch. Ensure correct wiring to the positive and negative battery terminals before operation.
Product Overview
The panel is equipped with multiple charging options and monitoring tools:
- PD Type C Power Delivery 2.0: Provides ultra-fast charging for compatible devices.
- QC 3.0 USB Port: Offers charging efficiency up to 4 times faster than standard chargers.
- LED Digital Voltmeter: Allows real-time monitoring of the vehicle's electrical system.
- Toggle Switch: Provides energy saving and equipment protection by allowing you to turn the panel on or off.
Technical Specifications
- Working Voltage: DC 12V-24V
- Input Current: ≤10A
- PD Fast Charging Max Output: 36W
- QC3.0 Fast Charge Max Output: 22.5W
- Power Outlet: 150W (12V) / 250W (24V)
- Toggle Switch Rating: DC 12V, 20A
- Operating Temperature: -25°C to 80°C
- Material: ABS, Aluminum Plate
Installation
The underside of the car USB charger is marked with "+" and "-" for the positive and negative poles. Connect the "+" terminal to the positive pole of the battery and the "-" terminal to the negative pole. Refer to the wiring diagram for specific connection points for the voltmeter, toggle switch, USB smart port, and 12V socket.

Package Contents
- 1x QC3.0 USB C Charger Socket
- 2x Cigarette Lighter Socket
- 1x Switch
- 1x Panel Base
- 3x Connect Wires
- 4x Mounting Screws
Practical help
Common problems
Check if the toggle switch is in the ON position and verify the wiring connections to the battery.
Ensure the positive and negative wires are securely connected to the vehicle's power source.
Before use
- Verify vehicle voltage is between 12V and 24V.
- Ensure the toggle switch is accessible.
- Check that the wiring gauge is sufficient for the load.
- Confirm positive (+) and negative (-) battery terminals.
Specs in practice
- PD fast charging
- 36W max output for compatible USB-C devices.
- QC3.0 fast charge
- 22.5W max output for compatible USB devices.
- Working voltage
- 12V-24V DC range suitable for cars, trucks, and caravans.
Images and diagrams
- The wiring diagram shows the connection points for the voltmeter, toggle switch, USB port, and 12V socket.
- Red wires indicate positive (+) connections, while blue wires indicate negative (-) connections.
Model compatibility
- Compatible with 12V and 24V vehicle electrical systems.
- Input current must not exceed 10A.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.