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Does installing an ETC require connecting to a power source?

4 Answers
LilaLynn
09/01/25 3:13am

Installing an ETC does not require connecting to a power source, as the ETC uses its own built-in power supply. The ETC electronic tag consumes power, but it does not need to be charged during normal use because there is a solar panel on the back of the battery that can charge itself. During installation, it is necessary to avoid the black areas on the windshield. The built-in power supply of the ETC typically has a lifespan of 3-5 years. The ETC device has an internal battery and uses solar power for charging, so it does not require additional charging. ETC stands for Electronic-Toll-Collection, which means electronic toll collection system. To apply for an ETC, you need to provide the original and photocopies of the vehicle owner's valid ID card and vehicle registration certificate. If the application is not made by the owner, the agent's valid ID card is also required. The photocopy of the vehicle registration certificate should include the page with the most recent annual inspection stamp. Additionally, a bank card for deducting highway tolls is needed. The applicant must be between 18 and 60 years old, and the vehicle must be registered under an individual's name. For company vehicles, the following documents are required to apply for an ETC: a company introduction letter, business license, duplicate of the business license, company seal, legal representative's ID card, vehicle driver's license, and vehicle registration certificate. These documents can be submitted at various bank branches or one-card service companies. Business license or organization code certificate, original letter of authorization for ETC business processing with the company's official seal, original and photocopy of the agent's ID card, and the original vehicle registration certificate. How ETC works: Through the vehicle-mounted electronic tag installed on the windshield, it communicates with the microwave antenna in the ETC lane at the toll station. Using computer networking technology, it settles payments with the bank in the background, allowing vehicles to pass through highway or bridge toll stations without stopping to pay the toll. Benefits of installing ETC: Time-saving: Eliminates the hassle of waiting in line; Green and eco-friendly: Reduces noise and exhaust emissions by allowing vehicles to pass through toll stations without stopping; Cost-saving: Reduces wear and tear and fuel consumption by minimizing vehicle starts and stops; Increased efficiency: ETC lanes can theoretically improve traffic efficiency by 2-3 times, making traditional ETC faster, more advanced, and more high-tech. Compared to license plate payment, ETC technology is more mature and advantageous.

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MatthewMarie
09/13/25 6:05am

Just saw ETC installation at a highway service area. Nowadays mainstream OBU devices don't require wiring at all! The one in my car has been working for three years, powered by a small solar panel near the windshield. During installation, the staff just snapped it onto the glass - didn't even need to check the manual. Remember not to place it too close to metalized film areas, as that affects charging efficiency. Special vehicle types like heavy trucks might need cigarette lighter power connection, but regular passenger cars really don't need to bother with power cables. After installation, remember to activate it, and just keep the solar panel free from dust - zero maintenance and super hassle-free.

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DelMorgan
10/27/25 6:52am

As an automotive electronics enthusiast, I can clearly tell you that 99% of current ETC devices are self-powered. There are photovoltaic panels on top of the device to absorb sunlight, with an internal lithium battery for energy storage. I've disassembled older models, and the battery life generally exceeds five years. Only in extremely special installation positions, such as completely sunless areas under the dashboard, is it necessary to draw power from the fuse box or reading light. However, this may affect signal reception and is not recommended for average car owners to attempt. When a new device is running low on power, simply park your car in the sun for two hours—it's much safer than modifying the circuit.

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Tamara
12/10/25 7:08am

No need to connect any wires at all, ladies! Just went to the bank last week to get an ETC, and the bank guy directly stuck it on the windshield with 3M tape. They specifically emphasized three key points: first, it must be placed outside the black dot area to ensure charging; second, it shouldn’t be too close to the metal film; third, maintain a speed reduction to 30 meters when passing through toll stations. The solar panel is super efficient, charging even on cloudy days. My bestie’s Tesla has top-grade heat insulation film, and the staff helped her choose a dedicated spot behind the rearview mirror—it hasn’t needed charging for half a year.

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