It worked just fine. Some disconnections that happen and I have to move it around in the cigarette lighter socket until I find the right contact point, are a problem with the car's socket and not with this particular charger (I've checked it with dozens of other chargers, the same thing happens with all of them).

It works just fine, charges the phone adequately, and shows you the volts and amps of the charging alternately, as well as the car battery voltage. The only drawback is that its display is not visible in the light!

We initially got it for the voltmeter and the digital display/light, but within exactly a month, it broke. Disappointment, what a shame.

Constantly slides out of the car adapter slot, tried on multiple cars, same issues, it wont stay in place

It works effectively for the quick charging of a device. The downside is that during the day the indicators are not visible at all and that it does not fit very well in the lighter socket.

I received the charger and the display of indicators lit up faintly, so I returned it (the replacement was delayed) and received the new one. Well, this one lights up a little more... disappointed. However, it charges normally.

It does what it says... very good... and you can see at the same time the device's ampere while charging, while also being informed about the car battery voltage.

It does exactly what it promises. A very good accessory to know the battery status at a glance

Good product for as long as it lasted, that is 1 year and 1 month. Suddenly it stopped charging and only shows the volts from the battery. On the downside, it does not fast charge if you are charging on both ports at the same time. Also, every time you plug something into the second port, the first one stops supplying power for 1 second. Strange how such a quality product breaks down in 1 year, while some Chinese ones I have from 2010 still work. Draw your own conclusions...

Update 21/8/2025
The second device they gave me as a replacement works flawlessly 12 hours a day... It seems it's just bad luck if you get a defective one..

It is fully worth its price, it attaches correctly to the lighter, you can see the voltage and comfortably charge 2 devices without fear. The only detail is that FastCharge only works if you have one device on top, but we can't have it all! If you have a mobile phone and want fast charging, just plug it in by itself.

I replaced the old one with this one for the voltmeter. It looks good and high-quality, and the voltmeter works fine, but it's only for nighttime... in daylight, you can't see anything because the lighting is very weak.

Very nice color that changes shades. Bright voltage indicator. The device recognizes how many volts are needed for maximum charging depending on the device. Charges very quickly. Worth it!