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Garmin Etrex Vista Cx Input Voltages

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I've searched this forum and also the Garmin site without luck. Does anyone know the exact specifications on input voltage to the Vista Cx. I purchased a non-oem 12v car to USB converter and measure the voltages (dual port) at 5.53V (5.4V with a 300mA test load). Normal USB specs I've seen put the tolerances from 4.75 to 5.25V, so my device is over the spec. I'm assuming Garmin has a buffer zone built in, but don't want to chance it till I have some hard facts. Thanks in advance!!



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I do not know.


I have two USB-DC adapters from Walmart ($10 each) and use them for my Vista HCx and Venture Cx. I've left them on overnight and have taken long trips, and have not encountered any problems - knock on wood.


You should be able to find the specs right in your manual. My old Garmin 45 could handle voltages from 4 to 40 volts DC.

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