Features: * Suitable for a variety of batteries, suitable for lead-acid batteries, lithium iron phosphate batteries, ternary lithium batteries, etc. * Multiple circuit protection, built-in near charging protection, short circuit protection, open circuit protection, reverse connection protection and other multiple protections, all of which are self-recovery and do not damage the controller. * APP real-time monitoring settings, you can check and set the working status of the machine at any time. Specification: Name: Solar Controller Material: ABS Rated charging current: 10A-60A Rated discharging current: 10A-60A Max PV Volt: 12V system 25V/24Vsystem 50V/48Vsystem 100V The USB output: 5V/2A Max Stand-by current: 12V150ma, 24V80ma,48V50ma Work temperature: -20& 8451;~+50& 8451; Size: 155 * 197 * 86mm Lead-acid batteries System voltage: 48V system Float voltage: default value 57.6V, adjustable value 52-60V Discharge cut-off voltage: default value 42.8V, adjustable value 38-44V Discharge recovery voltage: default value 50.4V, adjustable value 46-52V Ternary lithium battery System voltage: 48V system 13 strings Float voltage: default 54.6V, not adjustable Discharge cut-off voltage: default value 39V, adjustable value 39-45.4V Discharge recovery voltage: default value 45.4V, adjustable value 45.5-50.7V Lithium iron phosphate battery System voltage: 48V system 16 strings Float voltage: default 58.4V, not adjustable Discharge cut-off voltage: default value 47.2V, adjustable value 47.2-50V Discharge recovery voltage: default value 50V, adjustable value 50-54V Packing included: 1 * Solar Controller Note: 1. Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.