Check the listing for details. 12V/24V, 20A Solar Charge Controller for LiFePO4. Color: Black, Condition: New. Listed at 54.95 USD. Bioenno Power 12V/24V, 20A Solar Charge Controller (Model SC-122420JUD) is a versatile controller for use in solar systems with an integrated LCD display, that is designed to charge LiFePO4 (Lithium Iron Phosphate) batteries. This solar controller accepts either 12V or 24V input from solar panels and can handle up to 20 Amps. Featuring our proprietary CC/CV (Constant Current/Constant Voltage) circuitry, the solar controller provides a regulated voltage output for charging 12V or 24V LiFePO4. The solar controller also provides a regulated 12V or 24V. Solar controllers are required for all solar systems in order to maintain a regulated output voltage to charge batteries and for maintaining a regulating output voltage for loads. Please note that for any solar setup in which you are using a panel in conjunction with a battery and/or a load a solar charge controller is absolutely necessary. DO NOT plug a panel directly into your battery or your load! This controller does not boost voltage from the solar panel, but instead will regulate a high panel voltage from 50V downwards. Specifications System Voltage: 12V or 24V (automatic detection) Allowable Range for Input Voltage (from solar panels): 17V to 50V. Output Voltage to LiFePO4 Batteries: 12V or 24V. Output Voltage to Loads: 12V or 24V. Rated Charge Current (Current Delivered to Battery): Up to 20A Rated Load Current: Up to 20A Batteries Compatible w/ Controller: Lithium Iron Phosphate (LiFePO4),Li-ion Battery Operating Temperature Range of the Controller: -31 F to 131 F (-30 C to 50 C)