Battery-free TPMS
The latest vehicles use a TPMS system without any little batteries in the sensors - it relies on the centrifugal action for energy. Do any of the aftermarket TPMS systems for trailers use this tech...
Forum Discussion
I've never heard of one that uses centripetal force to power the sensor. But replacing the batteries is pretty much no big deal. I've changed probably three batteries over the last five years. They are less than a buck each, so I figure that's not bad. I do take mine off when the unit is in storage. And I don't travel as long or as often as some people either.
