Quick Charge 3.0 USB Car Charger Socket Power Outlet with Voltmeter 12V/24V 36W Compatible with Car Marine Boat Rv ATV Truck Golf Cart

• 【Intelligent Quick Charge 3.0】- Dual quick charge 3.0 USB port, built-in smart charging IC, will auto detects your devices and charges them at optimal speed, the 36W 12V USB outlet charges two compatible devices simultaneously up to 4X faster than conventional charging, better charging performance. QC 3.0 Backward-compatible with QC 2.0, 1.0, provides standard charging for non-quick charge devices.
• 【Built-in LED Voltmeter】- Comes with LED voltmeter, real time monitories the vehicle's battery and electrical system voltage, let you know the health of battery while driving. easy to check whether the connection is successful and allow quick and easy to find the usb position in the dark or at night.
• 【Safety Protection】- It's certified by CE & ROHS with Overload, Over-current and Short Circuit Protection to ensure charging safety, meanwhile, built-in converse connection protection that ensures the circuit won't be burnt out if wrong wiring.