Emerson 375 User Manual page 35

Learning the Basics
Charge the Battery
To ensure a long battery life, you should not recharge
the battery until it is fully discharged.
The battery can be charged separately or while attached
to the 375 Field Communicator. The indication light on
the charger will be green when fully charged, amber
when charging, cycle between amber and green when
pulse charging, and red if it is unable to charge.
Do not attempt to charge the battery pack in hazardous
areas. To charge the 375 Field Communicator battery:
1. Plug the charger/power supply into a power outlet.
2. Plug the charger/power supply connection into the
375 Field Communicator. The 375 Field
Communicator is fully operable while the battery is
recharging.
NOTE
The charger/power supply may remain connected to the
battery pack once it is fully charged. An overcharge
condition will not occur.
Retrain the Battery
The retrain the battery operation will fully discharge the
battery so it can be recharged to its full capacity. Perform
this operation if you notice a decrease in battery life or
every three to six months as a best practice. See
"Retrain the Battery" on page 2-15 for more information
about this operation.
To retrain the battery:
1. Remove the 375 power supply/charger if it is
connected to the 375 Field Communicator.
2. Select Retrain the Battery from the Settings menu.
The backlight intensity will be set to high, and the
backlight, stand by, and auto-off timers will be
disabled to quickly discharge the battery. It may take
several hours to discharge the battery, depending on
the amount of battery power that remained when the
operation began.
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