2-5 Battery Information Instrument Overview
2-8 PN: 10580-00444 Rev. U MS2090A UG
2-5 Battery Information
The batteries that are supplied with the Field Master Pro may need charging before use. They can be charged
using either the provided AC-DC adapter or the automotive DC adapter. The batteries can be charged in the
instrument or removed for charging using an optional battery charger (refer to the product technical data sheet
for ordering information). The batteries are installed at the factory and can be replaced by the user. Refer to
the next section for information on removing the batteries. Battery information and status is shown in
“Battery” on page 2-49.
Caution
Use only Anritsu-approved batteries, adapters, and chargers with this instrument.
When using the automotive cigarette lighter adapter, always verify that the supply is rated for a
minimum of 75 watts @ 15 VDC, and that the socket is clear of any dirt or debris.
If the adapter plug becomes hot to the touch during operation, discontinue use immediately.
Anritsu Company recommends removing the battery for long-term storage of the instrument.
Note
The batteries will charge at a faster rate when the instrument is turned off.
To prolong the useful battery life, the internal charging circuit monitors the battery temperature.
Normal charging occurs when the battery temperature is between 0 °C and 45 °C. Charging is
paused if the internal battery temperature is outside this range.
In order to maintain the battery capacity and to keep the remaining capacity indicator (found in the
“Battery” dialog) as accurate as possible, it’s recommended to run the through a recalibration cycle
on the external battery charger every three months. Refer to the product technical data sheet for
ordering information.
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