IMX-1 Sensor battery life

We currently have 5 IMX-1 gateways and around 200 sensors installed in our plant. The system is working very well and is a cost effective way to cover our "Balance of Plant" equipment that would not be practical to put under wired online monitoring. 

This system would in our opinion be even better if the sensor battery could be replaced. This would also allow the shorter measurement interval options to be more readily used on problem equipment without the fear of reducing the sensors life.

Is there any other users that would also be interested if SKF offered the sensor with a replaceable battery?