Quad Lock USB Smart Charger The Quad Lock USB Smart Charger offers versatility in how you charge your devices. You have the option to pair it with a Quad Lock Wireless Charging Head or simply use it as a USB charger, depending on your preference. Unlike typical battery-mounted USB chargers that can potentially drain your battery, this smart charger operates differently. Equipped with a 3-position switch, you can choose between three modes: always on, always off, or a smart connection. The smart connection mode activates the charger when the voltage rises above 13.5v and automatically turns it off when the voltage goes below 12.5v. This intelligent feature helps ensure that your battery is not drained unnecessarily, providing a reliable and efficient charging solution. Features: Output: Usb-A up to 18W max (5V/3A, 9V/2A, 12V/1.5A) Input: 12V - 24V DC Auto switching mode provides power only when engine is running to avoid battery drain Reverse polarity protection In-line safety fuse Waterproof 12V to USB Smart Adaptor housing made from polycarbonate construction TPU Toggle Switch PVC cables, Sae, Usb-A and Ring Terminals over-molds Brass Ring Terminals Ip66 rated Waterproof 12V to USB Smart Adaptor unit and cable housing Ip64 rated USB seal boot cover Includes 5x zip ties