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Can I power Cel-Fi directly from a 12 VDC source?

Cel-Fi requires a fully regulated 12 VDC power supply, and the power supply forms an import part of the device in the sense of power conditioning and protection.  We can therefore cannot extend our warranty to cover damage due to a direct 12 VDC connection.  Unregulated 12 VDC power sources from vehicles can have wide voltage swings and unclean power that can easily damage electronics. 

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