Yesterday I tested my new Orion TR Smart 12 12 30 (charger mode). Drove for about 20 minutes, my batteries were at 84% when I started the van, and after the 20 minutes got up to 87-88% SOC. Once I turned the van off I went back to check on the electrical compartment and WOWW the Orion Tr was HOT. I read the manual and it mentions that it gets hot while charging but how hot? In my opinion too hot. What are you guys who owe an Orion Tr experiencing, in terms of the temperature of the unit?