SunGoldPower 60 Amp Mppt Solar Charge Controller - SGC482560A is the most efficient type of charge controller. With up to 99.9% tracking efficiency, it ensures maximum power point solar charging that gets more energy to your battery bank. This controller automatically detects 12V, 24V, and 48V DC system voltages and supports various battery types, including lithium, sealed, AGM, and self-defined batteries. It features built-in over-temperature protection, current-limited charging, and a parallel function that breaks through the power limit of a single unit. Additionally, the built-in Bluetooth module allows real-time system performance monitoring via a mobile app, while the LCD screen displays system operation information, customizable parameters, and error codes.