This relates to the GPS tracking firmware version.


The G52S is a battery powered device. It must manage its power intelligently to ensure it works correctly when needed. It normally uses its accelerometer to wake-up when there is movement. It will then turn on the GPS to check for movement beyond the trip start threshold. If there are many movements that wake the device up, but it does not cross the trip start threshold, the battery will be drained by the constant wake-ups and use of the GPS. The G52S strategy to avoid a flat battery is as follows:

  • After X wake-ups without movement beyond the trip start threshold,
  • disable the accelerometer and sleep for Y seconds. After that, wake-up and check the GPS position.
  • If there has been no movement beyond the trip start threshold and the accelerometer has fired again while asleep, disable the accelerometer and sleep for a further Y seconds.
  • If there was no movement beyond the trip start threshold and the accelerometer has not fired again while asleep, revert to the normal accelerometer based wake-ups.
  • If there was movement beyond the trip start threshold, start a trip. 
X defaults to 7 wake-ups and Y defaults to 180 seconds. 

X and Y can be adjusted in System Parameters on the OEM Server Admin Interface, under the accelerometer tab. X is named Accel Wake Up No Movement Limit and Y is named Accel Wake Up No Movement Sleep Period.