Trimble Outdoors R7 - Manual (Page 58)

4 General Operation
4 6 Trimble R7/R8 GPS Receiver User Guide
Tr
imble R7 Operation
The power supply that is supplied with the Trimble R7 receiver
charges the receiver internal batteries while they are still in the
receiver. To do this, connect the power supply to the power/serial data
cable, connect the cable to Port 2 on the receiver, and connect the
power supply to an AC power source, as shown in Figure 4.2.
Figure 4.2 Charging the batteries
The two internal batteries take approximately eight hours to charge.
They are charged individually, so each battery takes approximately
four hours to charge. The internal batteries start charging whenever an
external power supply of greater than 15 V is detected.
2 3
Power/serial data cable
To AC
power supply