Product is very handy and easily plug in to car DC power supply

There must be a better product out there for 12.99.Update

Too bad since it otherwise appears to be a nice product

The quality of the the electrical connections at the tip and sides of the plug-in unit are good.

The USB charging is as good as any other quality charger I've bought

Works as advertised, powers my phone when I drive, I also like that I can monitor the voltage, just to know what the charging system does when it's working fine.

So far so good, works as advertised with no issues with us outlets as well

It also shows the amount of current being drawn by your device - nice feature if you think your phone battery is getting old and trying to die

Digital readout and LED glow ring let you know the charge state (voltage) of your car battery or when charging any portable device the charge level (in amps) going into it's battery

Best small tech device since sliced bread ( that analogy reveals something about my age I guess).

It works and based on my professional voltmeter the display is accurate

Good charger, no issues, solid build, I like the display, UPDATE - 10-05-18, the charger got hot and stopped working , will not power on at all now.

i love the current/voltage display, but then i'm a geek

The display shows the amps available while fast charging a device.

This thing is nice and heavy duty metal, I was expecting plastic

This things is a neat little gadget and you can tell it is quality , nice sturdy metal construction and the readout is clear

I realize my case was an extreme, but the metal is just to soft

May not be as accurate as a multi-meter but it definitely gives you a starting point if there is something

Works as a charger and volt meter, but not same item that was advertised.

I like having a meter that provides an actual readout of the voltage in my car instead of just relying on the warning light

Is easy way to monitor your voltage well made not cheap plastic

Works as expected.

Works as expected

Works as expected, great quality, and very attractive

Good charger, no issues, solid build, I like the display, UPDATE - 10-05-18, the charger got hot and stopped working , will not power on at all now.

I love the heavy, high quality build of this Car USB Charger and Voltage Meter

The outer ring glows green when plugged in and when a USB device is charging it glows a faint white

Digital readout and LED glow ring let you know the charge state (voltage) of your car battery or when charging any portable device the charge level (in amps) going into it's battery

When nothing is plugged in, the ring glows green

like display- charges phone like a fast charger- Display the condition of your car battery when not in

Good charger, no issues, solid build, I like the display, UPDATE - 10-05-18, the charger got hot and stopped working , will not power on at all now.

The USB charging is as good as any other quality charger I've bought

I am sure I received a defective charger.

I was going to buy an inexpensive charger but for a few bucks more I went with this one

I find it very handy to view the static charge of the battery (before turning the the vehicle on) as well as being able to view the actual voltage being delivered during the charge cycle.

Well, my car is charging just fine, according to this device

The display shows the amps available while fast charging a device.

This unit also provides an accurate voltage readout that represents the car battery charge.

It works but the voltage is not that accurate (I tested the same socket with a multimeter

Works good, voltage reading not completely accurate.

The voltmeter alerted me of a failing voltage regulator before it failed with the outer ring flashing at low voltage.

I really like the idea and looks of this device but it does not read accurate voltage