20A Solar Charge Controller for 12V/24V Systems Battery compatibility: supports leadacid, OP EAGM, GEL, ternary lithium and lithium iron phosphate batteries; intelligent full 3stage charging management for reliable power delivery Regulator and input range: wide voltage adaptation from 12V to 24V; max solar input up to 23V for 12V batteries and 46V for 24V batteries; enables stable operation under varying sunlight conditions while supporting auto battery voltage detection Controller with LCD display: largescreen LCD that stays on in the model; shows realtime data such as voltage, current and battery status; four USB outputs each delivering up to 5V/2A MAX for charging mobile devices efficiently Builtin protections: includes short circuit, open circuit, reverse connection and overload protection mechanisms to avoid damage during installation or operation; operates safely in temperatures from 35 to +60 C with low selfconsumption and longlasting ABS material construction Performance and reliability: designed for reliable power delivery in offgrid environments; compact allinone solution with robust protection and multichemistry support Use scenarios Offgrid cabin or rural application: pair with a solar array and 12V battery bank to power lighting, small appliances, and essential devices; USB ports offer convenient charging for phones and tablets RV, boat, or mobile installation: suitable for 12/24V battery systems on caravans, motorhomes, and boats; auto voltage detection simplifies setup and ensures proper charging under varying sunlight Emergency backup or remote workshop: provides a compact, protected charging and battery management solution for essential electronics during outages or in remote locations; ABS housing and wide temperature tolerance support outdoor use