First of all this feature is available since version 5 (v5), main reason is to reduce idle battery usage of your scooter while using our module.
Power saving will trigger automatically only while scooter is in disable state. You can "wake up" scooter by long touching metal sensor - scooter is waiting for your unlock code (if this long touch trigger unlock command as well).
"wake up" state lasts 20 seconds and then scooter goes to power saving state again. Every next sensor touch in this period of time will prolong "wake up" state for another 20 seconds.