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CHAPTER
3
SPSx51 Modular GPS Receivers User Guide 27
Batteries and Power 3
In this chapter:
Q External power
Q Battery safety
Q Battery performance
Q Charging the Lithium-ion battery
Q Storing the Lithium-ion battery
Q Using the Lithium-ion battery as a
Universal Power Supply (UPS)
Q Removing the rechargeable
Lithium-ion battery
The GPS receiver uses an internal rechargeable
Lithium-ion battery, which can be replaced only
at an Authorized Trimble Service Center.
The receiver can also be powered by an external
power source that is connected to the Lemo or
modem port.
The operational time provided by the internal
battery depends on the type of measurement and
operating conditions. Typically, the internal
battery provides 10 hours operation as a base
station and 12 hours as a rover during
measurement operations using the internal
radio.
Note – All battery operation tests are carried out
with new, fully charged batteries at room
temperature and full receiver configuration
operational. Older batteries, at temperatures
significantly higher or lower than room
temperature, will have a reduced performance.
Receivers operating with reduced configuration will
have a higher performance.