Site Master™ S331L User Guide : Battery Replacement : Site Master Battery
 
Site Master Battery
The batteries that are supplied with the Site Master may need charging before use. The batteries can be charged using either the AC-DC Adapter (40-187-R) or the DC adapter (806-141-R). Refer to Figure: Status Tool Bar Icons for a description of battery symbols.
Note 
Use only Anritsu Company approved batteries, adapters, and chargers with this instrument.
The batteries are charged in the instrument and only removed for replacement.
Pressing the battery icon will display the current battery information (Figure: Battery Information). Press ESC to clear the message.
Battery Information