DPT, Battery voltage gauge, Battery voltage measurement, Gray, 1 exit

Car Battery Voltage Meter with Movable Head by DPT, with Charging Indicator, Dual USB Ports + Lighter Socket
Model Number: DPV-309/DP4×4-0040
Color: Gray

Features of Car Battery Voltage Meter with Movable Head by DPT, with Charging Indicator, Dual USB Ports + Lighter Socket:
Accurately monitors the battery and charging system voltage.
Suitable for 12V and 24V vehicles.
Dual USB Ports, 5V / 3.1A (total).
One 12V/24V cigarette lighter socket.
Light indicator and LCD screen display battery charge status.
Adjustable plug for easy viewing.
8A fuse protection.
Warnings:
Do not install the unit where it obstructs driving or airbag deployment.
Keep it away from excessive moisture.
To prevent overheating, avoid direct sunlight exposure.
Disconnect when not in use.
Operation:
Plug the adapter into your car's cigarette lighter socket. The indicator lights will show the overall battery charge status, and the LCD screen will display detailed voltage—refer to the diagram below for an explanation.
Connect the device you want to power to one of the USB ports or the direct current socket.
The unit can be moved to adjust the viewing angle and can be rotated up to 180 degrees. The socket is protected by an 8A fuse; do not connect devices that require more than 8A.
The output power depends on the device's requirements but is limited to the maximum output power per port.
Note: The LCD screen will not display voltage if the car battery voltage is less than 5V. If the screen displays "HI," it means the vehicle's voltage has exceeded 30V. In such cases, remove the device to avoid damage. If the LCD screen is not functioning properly, unplug the device from the cigarette lighter socket and reconnect it.

Low battery voltage or issues with the charging system can have various causes, and it is recommended to seek professional advice to identify the root cause.