The HOTRC A400 is a compact, high-efficiency smart charger available at RoboShop BD, specifically designed for 3S (11.1V) and 4S (14.8V) LiPo batteries. With a built-in power supply and a maximum charging power of 40W, it offers a simplified “plug-and-play” experience without the need for an external adapter. The integrated digital LED screen provides real-time voltage and charging status, making it a safer and more precise upgrade over basic entry-level chargers.
