High charging voltage Mppt 30A/12,24,36, 48volts.
It's a brand new Mppt charge controller.
Its function is to charge the battery and to keep it safe from overcharging,and to control it from short-circuits.
This Mppt is a good, durable enough and powerful to operate.
It has a fan inside to protect the short-circuit of the MPPT, and the overheating.