What to Do When ETC Shows Low Battery?

2 Answers
ORuth
07/28/25 5:06pm
ETC displaying low battery requires timely charging: For solar-powered ETC devices, you can park the vehicle under the sun for several hours to charge the device. For ETC devices without solar charging panels, you can plug in the dedicated power cable and charge via the cigarette lighter socket. The ETC installation process is as follows: Upon receiving the device, first check if the ETC card and electronic tag (OBU) are damaged. Press the anti-tamper button on the back of the OBU, and the red light will briefly illuminate. The OLED screen will display "Tag Invalid" or "Please Insert Card," indicating the device is functioning properly. Clean the front windshield to ensure the glass surface is smooth, clean, and dry. Then peel off the adhesive backing of the OBU and attach it to the installation position. Press firmly for 2-3 minutes to remove any air bubbles. Insert the ETC card with the front facing the driver and the back facing the windshield, ensuring the chip is inserted into the OBU device. 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, thus minimizing pollution; Reduced wear and tear: Saves costs by decreasing the frequency of vehicle starts and brakes, lowering wear and fuel consumption. Users also enjoy a 5% discount on toll fees; Improved efficiency: ETC lanes can theoretically increase vehicle throughput 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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ArianaAnn
08/11/25 11:34pm
The other day my ETC device suddenly alerted me about low battery, which scared me into pulling over to check immediately. I frequently drive on highways, and without ETC it would be troublesome, having to queue at toll stations. My device is solar-powered, so I simply parked it in a sunny spot for the afternoon, and the battery was fully recharged. On cloudy or rainy days, I have to use the backup USB port connected to the cigarette lighter for charging. Experience tells me to check it every few months to avoid last-minute failures. Remember to charge it promptly—minor inconvenience in usage is nothing compared to the headache of highway access issues. Develop a small habit: park your car in sunlight when not driving, and your ETC will naturally stay well-maintained.
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