Universal OBD Power Cable for Dash Camera,24 Hours Surveillance/Acc Mode with Switch Button(Mini USB Port)

If you're tired of dash cam cables snaking across your interior, this is the perfect solution. Designed to free up your cigarette lighter socket.Integrated dual-mode switch:• ACC Mode: Powers off 5 minutes after your car’s ACC is turned off.• Surveillance Mode: Keeps running until it detects low battery voltage (11.6V), protecting your car’s battery.It draws power solely from the OBD interface, so there’s no interference with other OBD data communication.Easy install, smart features, and no clutter—this cable makes powering your dash cam a breeze.

This product is working great for my needs. I just needed my dash cam to run while my vehicle is on otherwise the camera will drain my battery. It was easy to install and has been working great for me specific needs. I would say this is much easier than other options out there or trusting a dash cam to shut off on its own.

Instead of shutting off after five minutes, it actually shuts off after about twenty minutes. That's not an issue, just noting the difference. I assume this device is measuring battery voltage to determine when the car is off or running. Charging voltage on a car battery is around 13.5 to 14v (when engine is running). When the car is turned off, the battery is no longer being charged and voltage is just the battery alone @ 12V. I think that's how it works.

I purchased the Mini USB OBD Charger with On/Off Switch. This was the only solution I could find to having the device turn on and off with the car, instead of being on 24x7. I am using this for a Garmin GPS, so there's not a need for it to always be on.First, this is not compatible with a Garmin GPS out of the box. It will power the GPS and turn it on, but it goes into PC/Data mode, not map mode. There's a slight work around where you unplug the GPS really quick and plug it back in, but I didnt want to bother with that.I took the USB cable from my current charger, and cut the top off and cut the end of this one off and soldered it into this OBD adapter. After I did this it worked perfect! It turns on when the car turns on, and when I turn the car off, the GPS turns off 5 min later.I just wish It had Garmin GPS support out of the box, and that the auto off time was alot less, like 30 seconds or something.I would totally buy this again to hardwire a GPS in my other car, but PLEASE be aware it's not plug and play with Garmin. If you're cool with cutting 2 USB cords apart, and soldering them back together then by all means go for it :)

Does as advertised. I like how the dashcam stays powered on a few minutes after I shut my car down. Worth the purchase.

It works all the time for the “I” position. However, the “O” position turns it off immediately despite the car being on or off. Do not provide that 5 minute delay as described.

For many years, every time I got into or out of my 2009 Chevy Suburban, I had to plug the dash cam power supply into the cigarette lighter or remove it. This is because my cigarette lighter is supplied with electricity even when the engine is off, and the dash cam doesn't turn off when I turn the engine off. This is not optimal, especially if you forget to unplug it and run down the car battery. The REARMASTER Universal OBD Power Cable solves this problem. Whoever invented this should receive the Nobel Prize for Automotive Excellence. After easy installation (just plug it in and route the cord), the dash cam now starts and turns off in concert with the engine. I hear angels singing every time I see that dash cam turn on and off. The only thing I don't care for is that the REARMASTER Universal OBD Power Cable continues to supply power to the dash cam (or other device) for 5 minutes after turning the vehicle off. This unnecessarily drains the battery just a little, and being OCD I prefer to see that the dash cam has turned off before I exit the vehicle. Other than that, it is A+ in every respect. Highly recommended, and Powernoodle Approved.

2024 UPDATE: Worked fine with an old Aukey dual camera. My 4K VIOFO dual flickers and continually restarts with this unit. Most high end dashcams draw more power than those from 5 years ago.———Original review:My car's accessory plugin does not shut off, so I needed a solution that did not require major surgery to connect my capacitor-powered Aukey dual dashcam to the fusebox. This did the trick, as my OBD port is easily accessed just under the dashboard. I turn it off when parked at home and keep it on when parking in public places to catch any potential hit and run collision or car prowlers.The 2 times I forgot to turn it off and parked for a couple of days, my 8 cylinder car's battery needed a slight boost to start because of the 11.6 volt cutoff, although it was not drained completely. That should be higher, say 12.2, or adjustable, but I can live with it.The company makes similar units with USB connectors that will plug in directly to webcams (or other devices), but I prefer this setup because it gives me more cable length for routing, and I can easily hook up a USB power bank to my camera out of sight for extended parking monitoring.