A: Merely standby only have the communicating function ,the standby time is 12 days.

Open the GPS positioning, once every 10 minutes to report the location information, about 50 hours of standby time, about 2 days.

Open the GPS positioning, each 1 minute to report location information, the standby time is about 6 hours.

Talk time is about 4 hours.

Combined with yourself circumstance, please choose the right work mode and position reporting frequency.