Epever PAL-ADP-50AN Parallel Adapter To connect multiple Epever Tracer 100A MPPT controllers together. The PAL-ADP-50AN is a parallel adapter for adjusting the charging current of multiple controllers connected to the battery in parallel, which monitors the charging and operational status in real-time. The adapter automatically changes the controllers' charging and operational status according to the battery level to prolong the controller lifetime. Apply to model: Epever Tracer AN(50-100A) series solar controller Product Highlights: Consistent control parameters of multiple controllers Current sharing by intelligently adjust each controller's charging current Support up to 6 controllers in parallel Support standard Modbus communication protocol External remote monitor units by the RS485 communication bus One button to set the communication baud rate 9600/115200 LED indicating working status