NOTICE
To prevent corrosion, thoroughly dry the USB port, the weather cap, and the surrounding area before charging or connecting to a computer.
The device is powered by a built-in lithium-ion battery that you can charge using a standard wall outlet or a USB port on your computer.
NOTE:
The device will not charge when outside the temperature range of 32° to 113°F (0° to 45°C).
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Pull up the weather cap from the mini-USB port .
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Plug the small end of the USB cable into the mini-USB port.
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Plug the USB end of the cable into the AC adapter or a computer USB port.
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Plug the AC adapter into a standard wall outlet.
When you connect the device to a power source, the device turns on.
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Charge the device completely.
A fully charged battery can run for up to 15 hours before it must be recharged.