Universal OBD Power Cable for Dash Camera,24 Hours Surveillance/Acc Mode with Switch Button(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.

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.

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.

It works for now. I've only been using it for a few days now but it does work. I'll update this review in a month if it's still working or less if it isn't.

I'm very pleased with this product and I'm writing a review in case anyone has the same issue. (I drive a 2014 Honda Accord.) I leave this product set in the position that turns off after 5 minutes when the car is off (not the always-on position). I started noticing that my dash cam would randomly turn off on long car rides on the highway. I thought this power cable was faulty and I could get the camera to turn back on by flipping the rocker switch to always-on and back again. But after some more time in the car, I was able to isolate the problem better. When my car is running at a constant highway speed on cruise control for a long time, the OBD voltage drops and the camera turns off. All I have to do is slow down my cruising speed by about 5 mph, and then the dash cam will come right back on - then I can resume my original speed. This might be a function of the OBD protocol at constant speeds, or it may be a gas-saving feature of the car - reducing alternator load (and voltage output) when it's not required. Luckily my dash cam makes an audible tone when turning off, so I know when to adjust my speed and turn it back on. I never seem to have this issue during city driving.

Worked great for exactly one week and then mid drive would shut down

Great quality product and does work as described. However this does not fit well in my 2007 Volkswagen GTI. The cable feeds out on the right side of the connector which makes this a very tight fit in my car’s ODB port opening. I had to push the connector in very hard to supply power, bending the cable quite a bit. This has me concerned the cable may be damaged if need to remove for access to the ODB port for diagnostic scans/emissions testings in future. In the photos I compare this connector with a previous ODB connector with no fit issues. In my previous connector, the cable fed out of the ‘back’ of the device. I do plan to keep this device because it is still ideal for my camera/setup and installation. However before you purchase this cable, check the port opening in your vehicle to make sure there is enough clearance on the side for the cable to properly feed through the port opening.

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.

No es MICRO usb como dice, te mandan un MINIUSB, que a mi no me servia y tuve que comprar un adaptador

Did the job. The switch is a good idea. When "0" that just means the unit will behave as if it were plugged into the typical cigarette lighter port meaning despite the OFF indication it really means it will pass through power once the car is fully started, not at ACC but actual car start. When the "-" switch is selected that means power is always coursing from the OBD through to the dashcam or whatever. You can turn off the car completely and power will still course through on this switch option. If the battery drains down to 11.6v it will then cut the power off and behave like the "0" option. The unit works as advertised. No complaints, at least not yet.

常時電源!ON/OFF便利、電圧下がった時に切る機能も動作してます

easy way to get parking mode working on my dashcam

今回2回目の購入です。 しかし、「本体スイッチ「ON/OFF」をしても全く給電されない」という不具合がありました。 出品者に連絡。 ＞私はテストのための新しいケーブルをお送りしたいと思います、私たちはすべての費用を負担します。 とのお返事をいただきました。 「迅速」かつ「最良」の対応。「出品者」とは、こうあるべきですね。