Thread: 12 volt Double Car Socket

My vehicle has only a single 12 volt cigarette lighter outlet, which is mainly used for powering my nuvi 52 when driving.

I now looking at getting a dash cam, for recording my (sometimes quite dangerous*) drives around Thailand.

This will also require access to 12 volt power, so the solution would seem to be a double socket, like this:

Code:

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Has anyone done this, and/or does anyone have an opinion on whether the Garmin be getting enough power to keep it charging?