3.1A Dual USB Car Charger Power Adapter with Battery Voltage Display – Silver

Special Function : Universal double USB car charger with LCD Digital voltage display DC(When Not charging , LCD display voltage,when Charging it display DC 😉 and will alarm when car voltage low (chager will can’t charging with low voltage);
Crafted with fire-retardant ABS+PC materials and smart chips to RELIABILITY – With Intelligent circuit design, this portable car charger protects against short circuiting, over-heating, over-currents, and over-charging. Smart IC to detect devices and offer perfect output. An LED indicator for reminding.
INCREDIBLY POWERFUL: 15.5w/5V/3.1A,2 ports of power Max 2.1A/Port , two port is 2.1A+1A ,total is 3.1A ;lets you charge up to tablets, smartphones or other devices at full speed simultaneously;
Universal car charger Output Electric current will Automatic adjustment according Mobile Phone , Tablet pc ,iPad, MP3,MP4 etc When charging,Max 2.1A/Port (two port can one for mobile phone ,another is for Tablet PC );
While not affecting the use of other equipment
Ready to travel?
Feel one car charger is not enough? Why not choose this dual port car charger?
It also has the led display to help you monitor the car battery health, 
real-time display of the current and voltage. 
ar Charger Specification:
Input: DC 12V/24V
Output: DC 5V/3.1A/15.5W. Smart ports automatically optimize charging speeds.
Car Charger Compatible Devices:
☑ iPhone 7/7plus/6S Plus/6 Plus/6/5S/5E/5/5C/4S
☑ Samsung Galaxy S7/S6 Edge, Note 5/4/S5 Tab S, 
☑ LG G5 G4, HTC, Nexus 5X 6P
☑ ipads
☑ Other mobile devices