Solar Charge Controller (Auto 12V/24V) — Reliable power management for small solar systems Why you need this controller Simplifies system setup by automatically detecting and switching between 12 V and 24 V systems, removing guesswork and reducing installation time. Protects batteries and connected devices so your panels and battery last longer and your devices charge reliably. Provides stable operation in challenging environments so your system stays working in cold, hot or humid conditions. Key features and benefits Automatic 12 V / 24 V recognition: The controller intelligently detects and configures itself for 12 V or 24 V solar setups, making it compatible with common small off-grid and portable systems. Comprehensive protection: Built-in safeguards include overcharge protection, overcurrent/overload protection, short-circuit protection and reverse-connection (reverse polarity) protection to prevent damage to batteries and loads. Stable industrial control: An integrated industrial microcontroller manages charging and load control for reliable operation in low and high temperatures and in humid environments. Dual USB outputs: Two USB ports let you directly charge phones and other USB devices from your solar system without needing separate adapters. Easy integration: Designed for use with solar panels, batteries and small solar generators; fits systems that require a simple, robust charge/regulation controller. Compatibility and performance Works with both 12 V and 24 V battery systems (automatic detection). Provides regulated charging to maintain battery health and avoid overcharging. USB outputs supply standard USB power for mobile devices and small electronics. Typical applications Portable solar generator setups and small home solar kits for charging batteries and powering USB devices. RVs, campers and boats where a compact controller is needed to manage battery charging from solar panels. Remote cabins, sheds or off-grid lighting where reliable, protected charging and USB power are required. Installation and use notes Connect solar panel, battery and load per standard wiring for charge controllers; automatic voltage detection removes manual configuration for 12 V vs 24 V systems. Ensure correct wiring polarity to avoid triggering reverse-connection protection and to ensure normal operation. Use in systems sized for the controller’s intended current rating (refer to product datasheet for maximum current and wiring recommendations). Protection and reliability details Prevents damage from overcharging and excessive current draw. Short-circuit and reverse polarity protection reduce the risk of wiring mistakes causing permanent damage. Industrial-grade microcontroller improves stability and resilience in varied environmental conditions. This controller is a practical, no-nonsense solution for small solar installations that require automatic voltage detection, essential protections and convenient USB charging.