Specifications: System voltage: 12V/24V (automatic identification) Rated charging current: 10A Rated discharge current: 10A Maximum photovoltaic voltage: when the battery is 12V, the maximum voltage is 23V, when the battery is 24V, the maximum voltage: 46V Rechargeable battery type: lead-acid battery / lithium ion battery (ternary lithium) / lithium iron phosphate battery USB output: 2 USB outputs, maximum 5V/2A Product size: about 133*70*35mm/5.24*2.76*1.38in Packing List: 1*Solar Charge Controller 1*Manual 1、Support Varied Batteries: The solar charge controller can charge 3 kinds of batteries, including lead-acid battery, ternary lithium battery, lithium iron phosphate battery, and it features the USB output voltage: 5V/ 2A, battery voltage: 12V/ 24V automatic identification. 2、Dual USB Output: The solar charge controller can automatically store various parameters set by the user, and it can store accidental power failure, data will not be lost when the battery has no power, and the solar charge controller can be used for 2 mobile phones, tablets and other devices require 5V power. 3、Intelligent Safety Electrical Protection: The solar charge controller features the multifunctional electrical protection, intelligent control, automatic disconnection, overcurrent and short circuit protection, reverse connection protection, low voltage and overcharge protection, overheating protection, effectively ensuring system stability. 4、Premium Material: Made of high-strength plastic, the controller adopts intuitive digital display settings, timing settings and digital display, and the intuitive display corresponds to one-key operation. 5、Simple Operation: The solar charge controller is equipped with a display that can clearly display status and data, and it is easy to switch modes and parameter configuration, which is suitable for home, industry, business, etc.