Dingfelder said:
I'd like to get one. They sound like lifesavers if you get in trouble, because people lying is par for the course. But don't want to wire it into my system, because of the cost (I'm not mechanical in the least). So I'd rather rely on battery.
Installation (for most of these) consists of inserting an SD card, sticking a suction cup mount to the windshield, leveling the camera, and plugging it in to your cigarette lighter or power port.
But the devil is always in the details.
You may need to set up certain parameters in the camera menu. Often the default values will work fine for most people.
Your cigarette lighter plug may have power all the time, or it may only provide power when the ignition is on. So this will effect the camera.
And most of them have a capacitor battery that is not damaged by heat, but can only run the camera for 30 seconds or so if power is removed, such as in a crash or just driving down a bumpy road.
Most of them have a shock sensor, usually called a G-sensor, that preserves recordings which occur before and after an impact. Crashes are impacts, obviously, but so are big potholes and sometimes hard braking and washboard roads.
So, after a period of time, ie, weeks, or months, this will slowly fill up the memory card, and you might have to purge the recordings or format the card now and then. (During normal driving, video recordings are continuously looped, and recorded over and over.)
Small prices to pay for peace of mind if something bad happens.
BTW I am using the Garmin Dashcam 10 and it's a good one. There are others, of course.