Spectra Precision SP80 - Manual (Page 41)

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Charging Batteries - Using External Power
Batteries Vs.
External Power
Source
The SP80 can be powered by its internal, removable
batteries, or by an external power source connected to its
Power/Data connector (serial port A; DC input).
Typically, one 2.6 Ah battery provides approximately
5.0 hours of operation during an RTK survey. If you insert two
fresh batteries in the receiver, you will get up to 10 hours of
total operation (the two batteries are used one after the other
with smooth automatic switching from the low to the fresh
one without causing operation disruption).
If an external power source is connected to the power/data
connector via the AC/DC power block, it is used in preference
to the internal batteries. When there is no external power
source connected, or if the connected one is not working,
then the internal batteries will be used.
When a UHF Kit option is used in a base receiver operated for
a whole day’s work without interruption, Spectra Precision
recommends that the receiver be powered from an external
12-V battery with higher capacity. The operating time will
depend on the battery capacity and charge as well as the
output power level set for the radio transmitter. See
Completing Base Radio Setup With External UHF Antenna on
page 50.
Charging
Batteries,
Scenario #1
• Remove the batteries from the receiver.
• Use the separate battery charger ([1]) and AC/DC power
block ([2]) provided. The battery charger can
accommodate two batteries ([3]) and charges them one
after the other.
• Connect the AC/DC power block to a power outlet using
the appropriate power cord ([4)]. For charging instructions
refer to Charging the Batteries on page 11.
[1]
[2]
[3]
[4]