1. 30A MPPT solar charge controller featuring advanced MPPT technology with up to 99% tracking efficiency. This controller detects the maximum power point by monitoring current and voltage to optimize energy harvest—not a boost-type or fixed-voltage charger. 2. Multi-function LCD display provides intuitive system status information. The controller automatically recognizes 12V or 24V battery systems. Always connect the battery first, then the solar panels. Ensure the battery has sufficient voltage during initial setup for proper battery type recognition. 3. Comprehensive protection: overvoltage, short circuit, overload, overcharge, and over-discharge protection. Continuous MPPT tracking ensures high charging efficiency and real-time optimization. 4. Industrial-grade microcontroller with 16-bit AD sampling for precise measurement of temperature, charging current, discharging current, and power generation—displayed in real time. Note: Always connect the battery before connecting the solar panels. Reversing this order may cause malfunction. Specifications: Weight: 322 g Dimensions: 8.9 × 4.3 × 2 cm Material: Plastic Includes: 1 × Solar Charge Controller