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
ktmrfs wrote:
virtually ALL TPMS systems rely on tire rotation to wake up the system to conserve battery life. the ones inside the tire have a battery. I seriously doubt there are any that do not use a battery.
Even the external systems sense roation to wake up the system.
centrifical rotation by itself is not a way to generate power.
Yes there are batteryless TPMS sensors on the market that use "SAW" technology.
