Solar TPMS vs Cable Charging vs Cigarette Plug TPMS

A Tyre Pressure Monitoring System (TPMS) is designed to give drivers real-time data on their tyre pressure and temperature. By constantly monitoring each tyre, TPMS helps improve safety, fuel efficiency, tyre life and overall vehicle performance. Whether you’re driving a passenger vehicle, towing a caravan or operating a heavy-duty truck, a TPMS can provide early warnings before tyre issues become serious and costly problems.

A key component of a TPMS is the display monitor. This is the device that receives data from the tyre sensors and shows live pressure and temperature readings.

Modern TPMS displays can be powered in several different ways with the three most common options being solar charging, cable charging and cigarette power plugs. Each power method offers its own advantages depending on type of vehicle, driving habits and installation preferences.

There is no single “best” option that suits every driver. Some drivers prefer the convenience and clean setup of solar-powered displays, while others may prioritize the consistent power supply of cable charging or the simplicity of a cigarette plug connection. A touring vehicle that spends long hours on the road may benefit from a different setup compared to a work truck, fleet vehicle or weekend off-road vehicle.

Solar Powered TPMS

Solar powered TPMS displays are the most widely used option on the market today. As the name suggests, these systems use a small solar panel built into the display monitor to continuously charge the display’s battery under sunlight. Since TPMS displays have relatively low power requirements, the solar panel is usually more than capable of keeping the monitor powered during normal day-to-day driving.

The display can be mounted directly onto the dashboard or windscreen without the need for wiring or permanent installation. This makes it especially attractive for 4WDs, caravans, trailers and everyday passenger vehicles where users want a clean and hassle-free setup.

Most solar TPMS displays also include a cable charging option as backup. This provides added peace of mind during extended periods of poor weather or long-term indoor parking. In practice however, many users find they almost never need to use the backup charging cable due to how efficient modern solar TPMS displays have become.

Cable Powered TPMS

Cable powered TPMS displays are designed to be directly wired into the vehicle’s electrical system. They draw power straight from the vehicle itself hence have a constant power source while the vehicle is switched on.

Truck dashboard with TPMS display monitoring showing tyre pressure & temperature.

This type of power setup is commonly used in trucks, rigid vehicles, buses, heavy machinery and large fleet applications where vehicles spend long hours operating every day. Heavy vehicles often rely on larger TPMS displays with more advanced monitoring functions such as the ability to monitor a high number of tyres across trailers and multiple axles. Because these systems are used in demanding commercial environments, operators often prefer the stability and consistency of a permanently powered display.

Cigarette Plug TPMS

Cigarette plug TPMS displays are powered by connecting directly into the vehicle’s cigarette lighter or 12V accessory socket. This type of setup offers many of the same advantages as a cable powered TPMS, but without the need for permanent wiring or professional installation. Simply plug the monitor into the socket, turn the vehicle's electrical system on and the system is ready to operate.

TPMS display monitor plugged into car cigarette plug.

One of the biggest advantages of cigarette plug TPMS systems is convenience. The display receives instant power as soon as the vehicle is turned on - allowing the monitor to automatically start displaying live tyre pressure and temperature data. Because no hard-wiring is required, cigarette plug TPMS systems are popular among users who prefer DIY setups.

The main downside of this type of TPMS is that it occupies the vehicle’s cigarette lighter or 12V accessory socket while in use. This may limit the ability to power other devices at the same time, such as phone chargers, cameras or GPS units.