Jebsens 4.8A 24W Dual USB Car Charger Volt Meter Car Battery Monitor with LED Voltage & Amps Display, for iPhone 7 / 6s / Plus, iPad Pro/Air 2 / Mini, Galaxy S7 / S6 / Edge/Plus, Note 5/4

Nobody wants to suffer a breakdown on the road, however most drivers are indifferent to or unaware of the condition of their car. If you want one of the easiest and most effective way to ensuring your car's health, then you need a battery voltage monitor! LED digital to monitor the voltage and Amps. Dual USB Ports pumps out 24W of power charge up to 4.8 amps or 2.4 amps per port. One of the industry's smallest USB car chargers for added portability. The safety range is 12V to 15V. If it is blow 12V, please replace the battery. The device auto powers off when input/output is higher than safety current. This ensures your devices protected against over-current and over-charging, safe charging while driving. Almost all the kinds of the mobile device, such as iPhone 7, 7 Plus, 6S, iPad Air, Air 2, Mini 4, 6s, Samsung S6, S6 Edge,Nexus, HTC, LG, SONY, Motorola and others. The LEDs are bright enough to read the display without being a distraction while driving. Monitor the voltage of the vehicle's car battery when not charging any devices. When charging a device, it cycles between device's charging current, and the voltage of the vehicle's car battery. This LED car charger is widely compatible with all the model of car.