It can last about a month. The etc system is powered by solar energy. There is no need to save a vehicle for power supply. As long as there is sunshine, it only takes a few minutes. to charge and it is sufficient for use. During installation Be careful not to block the solar panels. The etc equipment used by motor vehicles is an electronic non-stop toll collection system when a motor vehicle passes a highway or bridge and automatically collects tolls, short range communication can be carried out through the tag electronics on board the vehicle. the windshield and microwave antenna of the toll station, using computer network and banking back-end for settlement, it can realize the purpose of paying road tolls without stopping at toll stations. tolls on highways or bridges.
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Place it in a sunny location for about 3-4 hours and it can usually be put back into use.
The ETC will run out of power if the car sits in the garage for a month or so, but don't be too worried, just drive the car into the sun to recharge it. Under sufficient sunlight, it normally takes about 3-4 hours for a full charge. If the ETC is powered off, it should be recharged in the sun for approximately 3-4 hours. The most popular ETC electronic tag does not use a charging cable, but has a battery inside the ETC electronic tag and uses solar energy for external charging. Under normal circumstances, the normal usage cycle of the battery inside the ETC device is 3 years. If the ETC solar device is not used frequently, it is recommended to charge it every three months.