We just were asked about the “standby time” for the XPID device.
This question is tricky, because it depends on a lot of factors. Cellular or WIFI take a lot of power. The display takes a lot of power. Reading RFID badges takes a lot of energy. But without the display, RFID reader, the cellular or WIFI radios on, the standby current of the XPID100 series is 5mA.
With our 4500 mAh battery, this means the maximum standby time is 900 hours. With other peripherals functional, your mileage will vary.