2 USB Car Charger,12V/24V Voltage Meter, Black | Cigarette Lighter USB Adapter with LED Voltage Meter, 12V/24V Car Charger compatible for iPhone, Samsung, iPad, GPS, Dash Cam

worked right out of the box and gives an accurate reading . also nice to have the extra ports to keep my phone or whatever I need charged as well

Nice charger. Love the digital readout of the amps.

Works perfectly 12volts when not running 14.4 volts while running 👍👍

A must for anyone with an old car with electical issue to verify things are OK. Consistantly .3 to .5 of a volt off of battery reading ...i totlay get it . So far ..great kit

I noticed about a .3 difference between my battery and the charger, which is normal on an older car. You might want to use a multimeter to ensure you know what you're dealing with. FYI, this is the three-port flavor, and I didn't notice fast charging with my Pixel 6A in the green port -- which, by the way, does not glow. Fits snugly and works well! (Note: there is a bug in the software where the decimal is off for the battery voltage when other devices are plugged in.)

I am very impressed with the LIHAN Dual USB Car Charger! This compact little charger is incredibly efficient and easy to use. It fits snugly into my car’s cigarette lighter and allows me to charge two devices simultaneously, which is a huge bonus. The 4.8A output provides fast charging for both of my devices, which is perfect when I’m on the go. One of the standout features for me is the voltage meter on the charger. It’s so convenient to be able to monitor my car's battery health while driving. The LED display is easy to read and not overly bright, making it perfect for nighttime driving. If the voltage ever goes out of range, the flashing light alerts me to a potential issue, which gives me peace of mind when I’m on the road. The build is slim and lightweight, which is great for portability and doesn’t get in the way while charging. I love that the charger protects against overheating, overcharging, and short circuits—it really feels like a well-designed, reliable product. I’ve used it with both my iPhone and iPad, and they charge quickly with no issues. Overall, this is an amazing, practical car charger that does everything I need. I highly recommend it for anyone who needs a reliable, fast-charging solution with added functionality to monitor your car's battery voltage!

Great interface for Cell Pones but more importantly, great for providing Battery Status. Using it on by ZT Mower.

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.