Just a simple MPPT Solar Charge controller. It’s not the most efficient and certainly not the most feature rich but feed it some solar and it will charge a battery.
Model: hhj-60
Maximum Charging Power (Battery voltage/Wattage Supported): 12V/720W, 24V/1440W, 36V/2160W, 48V/2880W
Solar Input Voltage (Battery Voltage/Panel VOC): 12V/20-80VOC, 24V/37-105VOC, 36V/50-160VOC, 48V/72-160VOC
Voltage Output: 12-60V adjustable
Current Output Max: 60A