MOTOPOWER 12-24V 4.2Amp Dual USB Charger with Voltmeter LED Digital Display Universal for Car Boat Motorcycle RV (Modern)
Real-time Voltage Display - The built-in intelligent voltmeter with LED Digital Display let you know the real-time voltage status of the battery or the alternator.
Dual USB Quick Charge - Dual USB with 2.1Amp output for each(max total output of 4.2A). It can quickly charge almost any smartphones, tablets, GPS, digital camera, PSP/MP3/MP4 and other USB-devices.
Multi-Barrier Safety Protection - It's certified by CE & ROHS with Overload, Over Current and Short Circuit Protection to ensure charging safety. Meanwhile, the built-in reverse polarity connection protection makes sure the circuit will not be burnt out for reverse connection.
Durable & Waterproof - Made of fire-resistant material without worry of danger. The waterproof cap protects the USB ports from outside dust and water.
Easy Installation - Compact design with easy installation.It's a mini size and powerful USB power station for any vehicles, boats, etc.