20A Solar Charge Controller 12V/24V Solar Panel Regulator with 5V USB Port MPPT Charge Controller for Lead-acid Battery/LiFePO4 Battery/Ternary Lithium Battery Features: 【Efficient MPPT Technology】: Our solar charge controller adopts advanced Point Tracking (MPPT) technology, maximizing the efficiency of your solar system. It intelligently tracks and adjusts the charging process to extract the from your solar panels, ensuring optimal energy conversion. 【Versatile Compatibility】: This solar panel controller is compatible with various battery types including lead-acid, lithium iron phosphate (LiFePO4), and lithium-ion batteries. It automatically adapts to 12V/24V systems, providing versatile options for different solar setups. 【Comprehensive conservation】: With built-in overvoltage, short circuit, overcurrent, overcharge, over-discharge, electromagnetic field, temperature, and reverse connection conservation, our MPPT solar charge controller ensures the safety and longevity of your solar system. It effectively safeguards your batteries and connected devices from potential damage or accidents. 【Convenient Features】: Equipped with a USB 5V output, this solar controller allows you to conveniently charge your electronic devices on-the-go. It also features battery activation and repair functions, enhancing the performance and lifespan of your batteries. Additionally, the PV boot startup and temperature compensation features optimize the charging process in different weather conditions. 【High Charging Efficiency】: Our MPPT charge controller boasts an impressive 97% charging efficiency, delivering faster and more efficient charging for your solar panels. It intelligently recognizes the optimal charging voltage and current for your batteries, ensuring seamless and efficient power conversion. The temperature compensation feature further enhances charging efficiency by adjusting the charging parameters based on ambient temperature changes. Specification: Product material: ABS Product size: 131 x 99.5 x 29.5mm / 5.16 x 3.92 x 1.16in Product weight: 300g / 10.58oz Product color: Black Rated current: 20A Rated voltage: 12V/24V Charging efficiency: 97% USB output: 5V 1A Working temperature: -35°C - 55°C / -95°F - 131°F Packing List: 1 x Charge Controller