The BERTHALESS charger features dual 80cm (31.5 inch) retractable cables designed for convenience and organization. The mechanism engages for retraction after a 1-inch pull, aiming to prevent tangles on dashboards or center consoles. While specific cycle counts aren't published, the internal spring-loaded system is engineered for thousands of deployments and retractions, a standard for durable retractable accessories. This design helps maintain a clean interior by storing cables neatly when not actively charging devices, reducing wear compared to loosely stored cords.

This 4-in-1 charger is equipped to support up to four devices concurrently. Each USB port is rated for a maximum output of 2.4 Amps. When multiple devices are connected, the total available amperage is distributed among them. For instance, if two devices each draw 2.4A, the charger's internal power management system will balance the load. This ensures that while you can power multiple gadgets, peak 2.4A charging might be shared, providing efficient charging for common usage scenarios like family road trips without overloading the vehicle's power system.

The BERTHALESS charger integrates key safety protocols, including overcharging, over-current, and over-temperature protection systems. These features actively monitor the power flow and internal temperature. Overcharging protection prevents devices from receiving excess voltage once fully charged, while over-current protection limits amperage to safe levels, preventing damage from power surges. Over-temperature protection ensures the unit does not overheat during operation. Together, these systems create a steady and secure power supply, safeguarding both your vehicle's electrical system and your connected electronics.

The BERTHALESS charger is designed for broad compatibility, accepting input voltages from 12V DC to 24V DC, making it suitable for most passenger cars, SUVs, and trucks. It features two retractable cables, plus additional USB-A and USB-C ports, allowing it to charge a wide array of modern electronics. This includes popular smartphones like iPhones (from 11 up to 17 series), Samsung Galaxy devices, and Google Pixel phones, as well as tablets and other USB-powered accessories.