ETC ION Operation Manual page 342

R e c h a r g e t h e H a n d h e l d B a t t e r y
A battery level indicator is found in the upper right corner of the handheld LCD. When the battery is
near to a complete drain, the indicator will flash. When charging, the indicator will depict increasing
power to verify that it is charging.
When the remote is not in use, set the switch to the "Off" position to guard against accidental key
presses and to conserve battery power.
Charge the battery using the USB mini b cable that shipped with your RFR. Connect the USB mini
b connector to the handheld remote and the other end to the USB charger adapter supplied with
your RFR. You may also attach the USB cable to a powered USB hub, personal computer, or your
console. A full recharge may take up to 12 hours.
Provided there is enough battery charge, you may use the remote while charging.
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If you choose to charge the remote from the Ion console, you should unplug the
base station before doing so.
The remote will be functional once it is connected directly to the console. If the
base station is still connected and a command is entered on the remote, multiple
iterations of the command may register and this may create errors in the Ion
command line.
Ion Operations Manual