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
RCMAN46 wrote:
What I would consider ideal would be an internal sensor that had a rechargeable battery that is charged by the centrifugal action of the tire and wheel.
Yes, this would be ideal, but there is a net zero force at the interior of the rim. About the only thing I could imagine as an electrical power source is a piezoelectric device, but those generate such a small amount of energy I don't think they would work.
