With this Monitor Car Voltage Cigarette Lighter Adapter, you will not worried that your car battery has some questions. And there are 2 charging port that can charge your iPhone, iPad.
Product Size: L:W:H = 2.3 * 1.1 * 0.5 inch
Normal Car Voltage:
Start The Car: 13.4V~14.8V
Stop The Car: 12.2V~12.8V
Please Replace Your Car Battery when Below 12V