USB turns off 3 hours after the engine is switched off or when the vehicle battery charge drops below 50%. Battery monitor with 3 LEDs: when the USB output is off, the battery status is displayed every 5 seconds. 12V input via a 2-pin SAE connector (industry standard). 5V 2400mA output. Unique design of the USB socket seal and cap. Any USB cable can be used (seals when plugged in). Short circuit, overheating, overvoltage protection. Article Type Version Charger Features Short circuit protection, overheating protection, overcharge protection Area of application Garden / leisure equipment, motorcycle, scooter Main color blue Voltage 12 V