Do Ipass Transponders Have Batteries?

The E-ZPass battery is sealed inside the transponder. You can't replace the battery yourself, but it should last about a decade before you need to replace the transponder. There are more than 30 million transponders in use, and drivers in the Washington region get them from many different transportation agencies.

How do I know if my I-PASS transponder is working?

Drive through an I-PASS or Pay Online lane on any Tollway ramp. If there is a blue or yellow light, your transponder is working. Drive through a lane with an automatic coin machine. The red (stop) and green (thank you) lights will let you know if the transponder was successfully read.

What happens when my I-PASS transponder expired?

If the transponder is not replaced within 45 days of the date on the letter, the transponder will be deactivated and continued use of that transponder will result in toll violations. ... Transponders also can be mailed to the Illinois Tollway for replacement.