is a digital battery charge/discharge controller module designed for 6V to 60V systems, typically used for lithium or lead-acid batteries
To enter the parameter interface, long-press the button. Use UP/DOWN to adjust values and short-press SET to cycle through the following options: xycd60 manual link
Connect to your power source (charger/solar panel) in Charge Mode, or your battery in Discharge Mode. or your battery in Discharge Mode.