How Long Does the Battery in ETC Last?
2 Answers
Generally, the battery in an ETC device can last for about 3 years under normal conditions. For solar-powered ETC devices that are not frequently used, it is recommended to charge them every 3 months to prevent natural discharge of the internal battery. ETC devices have an internal battery and are charged externally via solar power, so they do not require regular charging. ETC stands for Electronic Toll Collection, which is an electronic toll system. To apply for an ETC device, you need to provide the original and photocopies of the vehicle owner's valid ID and vehicle registration certificate. If the application is not made by the owner, a valid ID of the agent 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 required, and the applicant must be between 18 and 60 years old and own the vehicle. How ETC works: The system uses an onboard electronic tag installed on the vehicle's windshield to communicate with microwave antennas in ETC lanes at toll stations. Through computer networking technology, the system performs backend settlements with banks, 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: Promotes low-carbon travel by reducing noise and exhaust emissions as vehicles pass through toll stations without stopping; Cost-saving: Reduces vehicle wear and fuel consumption by minimizing frequent starts and stops; Improved efficiency: ETC lanes can theoretically increase traffic efficiency by 2-3 times, making traditional ETC systems more advanced, faster, and more high-tech. Compared to license plate payment systems, ETC technology is more mature and advantageous.
I've been driving for over a decade and have used several ETC devices. Based on my experience, the battery typically lasts about seven or eight years, which isn't considered short-lived. However, this depends on how you use it—frequent highway toll transactions will drain it faster. For daily commuters like me, replacement is needed every five years or so. High summer temperatures can shorten battery life, while winter cold has less impact, though extreme cold in northern regions may accelerate aging. If your ETC fails to read or shows a low battery warning, address it immediately to avoid delays at toll stations—I once got stuck at a toll booth for ages. Replacement isn't complicated; most ETCs have fixed batteries requiring service center or bank visits for free swaps. Regularly check the device's seal to prevent water damage and extend its lifespan. For peace of mind, check the warranty period in the manual first—don't let minor issues turn into costly repairs.
