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What are the EXT and BATT ports in the Thinkware U3000 dash cam for?Updated a year ago

The EXT port in the Thinkware U3000 is used to connect a separate GPS antenna, which is useful if the dash camera's GPS signal is obscured by a heat reflecting material or a heated front windscreen.

Meanwhile, the BATT port is for the Thinkware iVolt Xtra Battery Pack. This is a data connection port that enables the Thinkware U3000  to make verbal audio notifications about battery status, such as its charge level.

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