LIHAN 2 USB Car Charger,12V/24V Voltage Meter, Black

I purchased this item specifically to use on my Harley Davidson to monitor the battery condition since I replaced it recently due to age. I installed an active charging port in one saddle bag for charging my phones, portable GPS navigation, or wireless music device and earbuds while riding, and it fits perfectly. One nice feature is that it is portable, and I can transfer it to my classic car or my two daily drivers. It appears very well made, has a clean simple design, and the LED display is easy to read. This device fits snugly in all four of my vehicles multiple receptacles, and it works well in all. The battery charge status is indicated before vehicle start, and the charge rate displays while running. The two USB ports work well to charge my Android, my iPhone, or both. Because of the quality of this unit at a reasonable price with a warranty, I believe it is a good value, and I will likely purchase at least one more.

Does the job perfectly and now I can charge all three of my devices

My 2007 Honda Odyssey doesn’t have a volt meter, so I wanted some way to verify the alternator and battery. This little guy fits the bill. Since it also comes with 3 usb ports is just a bonus for me. As far as the indicated voltage discrepancy: I’m sure it’s just a rounding error on the meter, or my Fluke is just more sensitive, or because I was reading right at the battery. Nothing to worry about though.

Worked great, and liked being able to see the voltage reading. However, the metal pieces on the side would get pushed up into the charger when I plugged it in sometimes. Now it's totally broken and having to buy a new one after less than a year of using it.

Use it on my boat. Very useful. Saved a lot of money putting a voltage gauge in the dash. It also gives you 2 USB connection. This is a must have for me.

It worked just like the catalog said very well. Looks nice. Charge is two phones and it tells you what how much is putting into the phones also very pleased charles

After learning the hard way that Alfa Romeo Stelvios tend to lose battery voltage, I was looking for a way to more easily monitor battery voltage than repeatedly popping the hood and using my multimeter. I chose this one for the color of the numerical display, which roughly matches the vehicle dash display, and the silver and black color which matches the vehicle trim colors. I tested it on three vehicles, two while running, and one turned off. I compared voltage readings of the device against multimeter readings from the battery posts, and all three tests demonstrated the device displays fairly accurate voltage readings. Perfect for my needs! The USB ports work as expected.

Works as expected