Here is 30A pro-trak (ProtoType).
Not only discharge is possible with 30A, but the case became new.

There is a stand like a photograph, therefore the display became legible. The portion of a heat sink is covered in a new case. The case which covers a heat sink is not attached to ProtoType
Air cooling of the heat sink is carried out by four FANs

This case has quality higher than a old(current) case. A color is lusterless black