This USB charger provides both charging capability and battery voltage monitoring. So you are getting a built in voltmeter with a LED display to tell you the car’s batter voltage in real time. The voltmeter will also give you an alarm when the battery voltage drops below 11.8 volt. There is an audible alert along with a red ‘LOW’ indicator.
The USB charging ports have it’s own LED display to show you which one you connected to for 2.4A or 1.0A. Once the USB port is connected to a device for charging, the corresponding LED is lit. The charger also features a 90 degree swivel which makes it easy for use in most cars. The unit is also very compact and easy to transport from one vehicle to another.
